Friday, November 28, 2014

What is fracking and why is it controversial?


Since the natural gas reserves of the Earth are slowly fading away, people are trying to find different ways to get access to the remaining resources, and one of the recent developments in this regard comes in the form of hydraulic fracturing, also known as fracking.

If you are asking yourself what is fracking, then you should know that this is basically the process of injecting fluid during the drilling process that is made at a high pressure, all with the only purpose of fracturing the rocks and releasing the natural gas that is found inside them.

This technique has been applied to various wells, and these include tight oil, coal seam gas, as well as tight gas for example. In fact, fracking was firstly used back in 1947 during an experiment, and since then it has become a widely used, although very controversial way to release natural gas onto the surface. Since then, more than 2.5 million of fracturing operations have started all over the globe, although in recent years a boom has started in this regard, with numerous places being seen as feasible and ready to exploit.

And while fracking might be the answer to numerous natural gas problems that the world is currently experiencing, it’s also safe to say that this is a very controversial method, with numerous countries all over the world being against it.

The persons that agree to it, mainly the ones that are exploiting it are talking about the major economic benefits that this method offers. However, there are numerous opponents that note the downsides of fracking and the potential dangers that it can bring.

One of the major problems that fracking brings to the table is the fact that the whole process can have a negative impact on the environment. First of all, it will contaminate the ground water and make it undrinkable, a bad thing considering that there are still many people all over the world that rely on fountains and ground water to get their daily supply of the much needed liquid.

Then, there’s the problem that the fracking process degrades the air quality which is also a major downside. And as if that isn’t enough on its own, fracking will even trigger earthquakes, bring noise pollution, surface pollution and just remove the ability for the environment to repair itself in a natural manner.

If you are one of the persons wondering what hydraulic fracking is, then you can easily see this is a process that can damage the environment irreversibly. While it does have its upsides, fracking can bring some major negative consequences for the humans in that particular area, as well as the wildlife and plants.


We can clearly say that this is the gas extraction method of the future, but with so many downsides, we can expect that a new, safer method will be found soon enough!

Friday, October 10, 2014

Where did Arbor Day come from?




Arbor Day is a celebration that takes place in a number of countries around the world. Every country has its own unique take on it and celebrates it at a different time of the year - depending on how their countries are affected by the changes in seasons.



 



The Northern Hemisphere tends to have they celebrations at the beginning of the year, while the Southern Hemisphere celebrates towards the end of the year, at the beginning of Spring. South Africa celebrates Arbor Day, and to a larger extent Arbor Week, in the first week of September from the 1st to the 7th.



 



The first official celebration of Arbor Day was on the 10th of April 1872 in Nebraska, USA. The man who started the trend was Julius Sterling Morton, a Michigan native who moved to Nebraska to become the editor of a newspaper. When he and his wife built their home, they noticed a lack of trees on their property, and while many people assumed that there were none due to the fact that the property and region were not really well suited for it, Morton and his wife decided to go ahead and do it anyway.



 



The initial reasons Morton gave when he began promoting his new plan were quite different from the reasons we cite when we celebrate the day now. We celebrate Arbor Day in the 21st century in order to promote conservation of natural resources, and allowing trees to grow in abundance, which will increase oxygen production and provide us with a generally cleaner Earth. Morton, however, claimed that planting trees was not only a way to make your property look better, but it would also block high winds, provide a barrier against the harsh rays from the sun, and provide wood and fuel for building and heating.



 



On Arbor Day, the plan is to have every person plant one tree, thereby showing respect to nature by helping it sustain itself through all of the harm we’ve done. Many schools and organizations have taken to using the day to plant trees in honor of people in the community who they feel have been helpful and have had a significant impact on their lives, bringing an incredible social factor into the day on top of the great ecological advantage it brings.



 



 


Thursday, October 9, 2014

How to plant a tree on Arbor Day




Arbor Day is a worldwide holiday that is celebrated at different times during the year in different regions. Having started in the 19th century in Nebraska in the United States, the day has become a popular way of giving back to nature. In order to do so, and to make sure that your planted tree will grow to its full capacity, it is important to understand how to plant the tree properly. With most plants, it may be as simple as clearing a little patch of mulch and sticking the plant into it, then re-covering it to ensure that the roots grab hold. Trees, however, need a little more care and attention than that.



 



•   The first thing you need to do is to make sure your tree and the soil you’re looking to plant it in is good enough to promote growth. You will preferably need a large section of open land with loose, fertilized and watered soil. Make sure your trees roots are not broken or clumped too much, because this will cause it to not be able to branch out and grab hold of the ground once it is planted.



 



•   Next, dig your hole, and make sure that it is at least twice as wide as the rootball of the tree, and do not make it any deeper than it had been planted previously in the growth centre you got it from.



 



•   If there is a burlap sack around the rootball, cut it off after placing it in the hole, but you can leave the sack at the bottom of the hole, since it will simply become compost over time and aid in the growth of the tree.



 



•   Fill up the hole with loose soil and a little bit of water to keep it moist. Once the hole is filled, compact the soil with your hands to make sure there are no remaining air pockets between the soil and the tree roots.



 



•   In order to ensure the straight growth of the tree, plant a stake next to it and tie it loosely to the tree. Once you are sure the tree will grow straight unhindered, cut the stake out, or leave it, and allow the tree to push it out as it grows.



 



•   Water the tree every day for several weeks after it is planted. This will allow the roots to grow and grab hold of the soil quickly, and after that, you should have a self-sustaining tree, right in your back yard!


Friday, September 19, 2014

Top 10 inspirational Leaders


 





 



Some of the most charismatic and inspiring role models in the world come from humble beginnings. We look up to them because they show us that we can do better, and even against adversity, we can accomplish what we set our minds to. When it comes to the most notable among them, we tend to idolize them for all they have accomplished, and we attempt to emulate them in any way possible. Here are 10 of the most accomplished and noteworthy Leaders in the world, living or dead, that have revolutionized the way we see the world.



 



1.    Nelson Mandela



 



Perhaps the one person who will inevitably take the top spot on anyone’s list of inspirational people, the late father of South Africa, affectionately known as ‘Tata Madiba’, is known across the globe as one of the most steadfast figures who, right up to the time of his passing, embodied the ideals of reconciliation, peace and love. The first democratically elected President of South Africa and Nobel Peace Prize winner, Nelson Mandela, has helped millions of people keep their dreams alive going forward into the 21st century.



 



2.    Jeff Bezos



 



While not many people unfamiliar with the tech and online retail industries will know his name, Bezos is undoubtedly one of the most innovative and successful entrepreneurs and businessmen in the world. In 2013 he bought The Washington Post, one of the world’s leading newspapers, for $250 million, and his company Amazon (best known as being the leading Online retail marketplace in the world) is innovating in more ways than one, with new tests underway that would allow the use of unmanned drones to deliver packages within as little as 30 minutes.



 



3.    Barrack Obama



 



A man who needs no real introduction, now having served two terms as the 44th President of the United States of America (and as a result, taking his place in history as the leader of the free world), Barrack Obama rose from humble upbringings, being raised by a single mother. He became a Harvard educated lawyer, and has won the Nobel Peace Prize for his efforts to end the War in Iraq after his election as President.



 



4.    Larry Page and Sergey Brin



 



The two men behind what is now one of the most widely used and daily recognized companies in the world (we’ve literally called the act of searching for information online ‘Googling’), and have managed to continue to innovate and maintain their place atop the ever changing tech landscape, despite being a relatively old company. The company that brought us the most trusted search engine in the world, as well as one of the most widely used mobile operating systems is even expanding its product range into high speed Internet access and its crazy sounding ‘Project Loon’, which would launch Internet connected balloons into areas with low connectivity to bring Internet access to those without advanced infrastructure.



 



5.    Sonia Sotomayor



 



The United States Supreme Court is one of the highest honors any judge could aspire to, and Sotomayor has managed to break down countless barriers in her journey that lead her to become only the third ever female Judge to serve on the Supreme Court bench, and astoundingly the first ever Hispanic on the bench to boot. Sotomayor was raised in the Bronx in New York City, a notoriously rough neighborhood, by her widowed mother and has helped turn the scales of justice to a more fair and equal system



 



6.    Elon Musk



 



Today, Elon Musk is one of the biggest names in innovation associated with the tech industry, and many people do not know that he came from humble beginnings as a South African boy who immigrated to the USA at the tender age of 17. Musk became a billionaire once the company he co-founded, became a global phenomenon which is to this day accepted as one of the most efficient and secure online payment systems in the world. That company is PayPal. Musk later invested his money in Tesla Motors, a company looking to reinvent the wheel and introduce affordable and efficient electric cars to the world. In 2014 it was announced that Tesla’s plans would be made available to any company that wishes to use them to build electric vehicles. He also made headlines by introducing plans to build the Hyperloop, a futuristic magnetic levitation transportation system that would allow passengers to travel from Los Angeles to San Francisco in only 35 minutes. Musk is also heavily invested in SpaceX, a company currently leading the frontier of private space travel.



 



7.    Bill Gates



 



A name that hardly needs any introduction. Bill Gates is widely considered to be the wealthiest man in the world, and is also a massive contributor to countless charitable causes around the world. His story is familiar to us all, having started Microsoft in his garage after borrowing money from a friend to buy a crucial part for his first computer, he has gone on to be the CEO of Microsoft, the world’s leading PC software company, with countless innovations under his belt that would take a good chunk of time to even list.



 



8.    Reed Hastings



 



To anyone unfamiliar with Netflix, an online video streaming service that started as a humble video rental and delivery company, it has taken the world by storm, and even though it is currently only available in a select few countries, its services are so popular that in 2013 alone, its share price rose by a whopping 260%. Netflix has also introduced some original content in the last five years, including shows that have garnered a total of 14 Emmy nominations. Not bad for an independent company whose flagship show, House of Cards, is regarded as one of the best series in the last decade. Hastings and his company are also well known for their opposition to the move by telecommunication giants ComCast’s plans to create tiers of Internet connectivity which would effectively widen the Digital Divide at an unprecedented rate.



 



9.    Sir Richard Branson



 



Branson’s name is known worldwide as being synonymous with global reach and as being the franchise that is instantly recognizable anywhere you go. The Virgin Group now consists of over 400 companies, including gyms, record labels, airline and even the brand new Virgin Galactic, set to launch within the next five years, the company plans on making space slight possible for ordinary people in the near future.



 



10.  Bas Lansdorp



 



Lansdorp never really made waves until recently, though he has been involved heavily in innovation for quite some time. The Dutch entrepreneur and successful mechanical engineer helped develop technology aimed at creating efficient, self-sustaining wind-energy. He then sold his shares in the business, Ampyx Power, and invested it in a project called ‘Mars One’, a venture that aims to establish the first ever permanent human colony on Mars in the next 20 years. Plans for the Mars One project are already underway, with applications being sorted through and brave should being chosen to take their places in history as the first colonists of the Red Planet. This is all due to a vision Lansdorp had as a student at the University of Twente in the Netherlands where he graduated with a Masters degree.



 



Written by Wesley Geyer


Top 10 inspirational Leaders

http://schooltourssa.com/



Some of the most charismatic and inspiring role models in the world come from humble beginnings. We look up to them because they show us that we can do better, and even against adversity, we can accomplish what we set our minds to. When it comes to the most notable among them, we tend to idolize them for all they have accomplished, and we attempt to emulate them in any way possible. Here are 10 of the most accomplished and noteworthy Leaders in the world, living or dead, that have revolutionized the way we see the world.

1.    Nelson Mandela

Perhaps the one person who will inevitably take the top spot on anyones list of inspirational people, the late father of South Africa, affectionately known as Tata Madiba, is known across the globe as one of the most steadfast figures who, right up to the time of his passing, embodied the ideals of reconciliation, peace and love. The first democratically elected President of South Africa and Nobel Peace Prize winner, Nelson Mandela, has helped millions of people keep their dreams alive going forward into the 21st century.

2.    Jeff Bezos

While not many people unfamiliar with the tech and online retail industries will know his name, Bezos is undoubtedly one of the most innovative and successful entrepreneurs and businessmen in the world. In 2013 he bought The Washington Post, one of the worlds leading newspapers, for $250 million, and his company Amazon (best known as being the leading Online retail marketplace in the world) is innovating in more ways than one, with new tests underway that would allow the use of unmanned drones to deliver packages within as little as 30 minutes.

3.    Barrack Obama

A man who needs no real introduction, now having served two terms as the 44th President of the United States of America (and as a result, taking his place in history as the leader of the free `became a Harvard educated lawyer, and has won the Nobel Peace Prize for his efforts to end the War in Iraq after his election as President.

4.    Larry Page and Sergey Brin

The two men behind what is now one of the most widely used and daily recognized companies in the world (weve literally called the act of searching for information online Googling), and have managed to continue to innovate and maintain their place atop the ever changing tech landscape, despite being a relatively old company. The company that brought us the most trusted search engine in the world, as well as one of the most widely used mobile operating systems is even expanding its product range into high speed Internet access and its crazy sounding Project Loon, which would launch Internet connected balloons into areas with low connectivity to bring Internet access to those without advanced infrastructure.


Read The Full Article Here http://www.outdooreducationafrica.info/blog/

Wednesday, August 27, 2014

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The Importance of introducing kids to nature - http://bit.ly/1p80X1T



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Friday, August 22, 2014

The Importance of introducing kids to nature




Most children, while growing up, have a sense of adventure that is matched by nothing we experience when we become adults. As kids, we get excited at the prospect of being outside, running around, climbing trees, getting dirty and finding weird looking bugs in our gardens.



While most of the time this kind of activity seems like its just a simple part of growing up, or a part of a child’s life that they will eventually grow out of, it is an incredibly important part of the development in any child’s life that will stick with them long into their adult life.



 



Letting children enjoy and develop their relationship with the natural world will not only be beneficial for them, but for the natural world itself, since it is more likely that they will grow up with a healthy respect for all kinds of life, and will be more aware of how they affect climate change, and how to make a difference than if they are constantly sitting in front of the television.



Any direct access they have to the natural world will also give them some valuable experience and knowledge of how the world works for when they get to learn about biology and nature at school.



Many plants in your garden, as well as the insects and animals that may be living in and around them, will grow and develop over time, and being able to experience and learn about those processes will spark your child’s interest, or even allow them to start thinking about the world in a completely different way than they would if they were constantly indoors.



 



In addition to getting them to be more active physically and mentally, exposure to the natural world (even if it is mostly limited to your garden and the local park) will help them feel more comfortable with the idea of being in nature, and when it comes to their adult life, they will be more likely to be able to handle things like insects, spiders and snakes than they would if they viewed those things as dangerous, freaky and unusual.



 



Being in the garden more often means that they will pick up a few scrapes and nicks along the way, and possibly even a few bee stings. All of this will teach them that nature isn’t the horrible wilderness that it seems like, even though we all know that getting stung by a bee isn’t exactly the most enjoyable experience; at least they will be able to understand both how to handle themselves and to not freak out when they come across a lone spider trapped in their bathtub.



 



Written by: Wesley Geyer



Creative writer 


Wednesday, August 20, 2014

10 Strangest Natural Wonders




We’re all familiar with those natural wonders of the world that have gotten tons of publicity, being named on official lists, becoming officially protected heritage sites, and being featured in the background of all of our friends Facebook photos from their trips abroad. However, many of the greatest, and admittedly, strangest, natural wonders are still quite unknown by most of us. While there is no list long enough to go through every weird and wonderful natural site on the planet, since almost every country in the world has something that has formed naturally that would be considered out of the ordinary, the following (sourced from information available at traveandleiesure.com) is just a taste of what is out there. It doesn’t get much stranger than the natural world, and some of the things on this list would never have been imagined if they hadn’t been discovered first.



 



The Luray Caverns, Virginia, USA



 



In a 400-million-year-old cave system in rural Virginia you’ll find the world’s largest musical instrument. Visitors have been coming to the Luray Caverns to see limestone columns, stalactites, and stalagmites since the site’s discovery in 1878, and while the natural beauty of the underground world is its own draw, the main attraction is the Great Stalacpipe Organ, built in 1954. When the keys of the organ are pressed, a rubber mallet taps the cluster of nearby stalactites, producing varying tones that echo throughout the site’s sprawling network of caves.



 



Glowworm Cave, New Zealand



 



Quarter-inch-long bioluminescent glowworms that radiate a tiny blue light dangle from the ceiling of these caves deep in the lush, subtropical hills of New Zealand’s North Island. Visitors ride in an inflatable raft along the underground Waitomo River with Spellbound Glowworm & Cave Tours. Slowly adjusting to the darkness, they admire what looks like a turquoise starscape. Glowworms, which dangle sticky, filamentous “fishing lines”to catch insects, are scattered throughout many other caves, but their densely concentrated numbers here make this grotto unique in the world.



Carrera Lake, Chile



Six thousand years of wave erosion created the undulating patterns that give these caves their marbleized effect, enhanced by the reflection of the blue and green water of Carrera Lake, near Chile’s border with Argentina. Although the area is threatened by a plan to build a dam nearby, for now, visitors can kayak throughout the caves on days when the waters are calm.



Lake Retba, Senegal



It looks as if someone poured a giant bottle of Pepto-Bismol into Lake Retba—that’s how deeply pink these waters are. The color is actually caused by a particular kind of algae called Dunaliella salinathat produces a pigment. The salt content is extremely high, reaching 40 percent in some spots and allowing the algae to thrive (and swimmers to float effortlessly on the surface of the 10-foot-deep lake). Blinding white piles of salt line the shores, and locals work several hours a day harvesting salt from the bright pink water.



 



Sailing Stones, Death Valley, USA



No one has ever seen one of the “sailing stones”on Death Valley’s Racetrack Playa move, but evidence of their travels is visible in the long track marks that trail behind them in the dusty ground. Scientists aren’t sure exactly how the rocks—which can weigh hundreds of pounds—make their way across the dry lake bed. The prevailing theory is that when the rocks are wet or icy, they’re pushed along the flat playa by strong winds. The deep groove marks they leave behind indicate they may travel up to 700 feet from their point of origin.



Caño Cristales, Colombia



Folks make the journey into central Colombia’s Serranéa de la Macarena national park to see why Caño Cristales has inspired nicknames like the River of Five Colors, the Liquid Rainbow, and even the Most Beautiful River in the World. It’s important to get the timing right: when the water reaches the perfect levels (usually between July and December), it becomes a kaleidoscope of pink, green, blue, and yellow as a plant called the Macarenia clavigera, which lives on the river floor, gets the sun it needs to bloom into an explosion of colors.



The Eye of the Sahara, Mauritania



 



This enormous depression, circular in shape and stretching 25 miles wide, is like a bull’s-eye mark in the middle of an otherwise flat and featureless area of Mauritania desert. Visible from space, it has been a landmark for astronauts since the earliest missions. The Eye isn’t the result of any target practice by aliens; rather, it formed as winds eroded the different layers of sediment, quartzite, and other rocks at varying depths.



The Stone Forest, China



 



Many of the trees within the forest in China’s remote Yunnan Province are rock hard, literally. The area, which spans nearly 200 square miles, was underwater 270 million years ago, and the sea floor was covered with limestone sediment. Gradually, the seabed rose and the water dried up. As rain and wind eroded the weaker rock, the stronger limestone spires began to take shape. Now they rise skyward, surrounded by leafy trees.



Blood Falls, Antarctica



 



A shockingly macabre shade of what looks like blood cascades down the pale face of Taylor Glacier. When scientists first discovered these falls in the McMurdo Dry Valleys in 1911, they thought algae colored the dark red water that spewed from a crack in the glacier. It turns out the hue comes from high iron levels in the falls’source, a pool buried 1,300 feet below the ice. In a sinister twist, the landscape is so arid that when seals and penguins wander inland and get lost, they never decompose; their remains are left strewn about.



Puerto Princesa Subterranean River, Philippines



 



The five-mile-long Puerto Princesa Subterranean River on the island of Palawan is the world’s longest navigable underground river. It flows to the South China Sea through a nearly 15-mile-long cave that’s lined with stalactites and stalagmites and contains the largest cave chamber in the world. The surrounding park is a UNESCO World Heritage Site that’s equally impressive and is home to more than 800 plant species, 165 kinds of birds, 30 mammal species, 19 varieties of reptiles, and nine different species of bats.


Different bird species




Most of us interact with birds on a daily basis, yet a lot of the time we view them as quite a regular part of our lives. Sure, most of the birds we encounter in the city tend to be pigeons or finches, but even those are more extraordinary than they seem if you take a closer look. Apart from these, there are thousands of species of birds, each distinctly coloured and shaped and each behaving in their own unique ways, competing for territory and filling the skies with the sounds we sometimes take for granted. Here are a few examples of the incredible variety you might encounter if you only look to wards the sky:



 



Peregrine Falcon:



 



One of the most common birds in the world, peregrine falcons are found on every continent except Antarctica. In North America, the birds are found along the eastern, western and Gulf of Mexico coastlines, and inland throughout the Rocky Mountain region as well as throughout Alaska and Mexico.



These birds prefer open habitats near water, and they have also adapted to urban environments, largely through repopulation programs. Northern and southern populations will migrate seasonally, and all peregrine falcons are nomadic in search of food.



These birds of prey are powerful, swift flyers. They will soar in search of food, diving at speeds of 175 miles per hour or faster as they attack. Peregrine falcons have large territories and will return to the same breeding and nesting sites for generations.



Common Bronzewing:



In many parts of the world, doves and pigeons are relatively bland birds, but the common bronzewing of Australia has some of the most colorful plumage of any pigeon in the world. One look at its iridescent wings, and no birder will think there's anything "common" about this bird. Males have a gray body with a buff forehead and pink wash on the breast. A thick white line runs beneath the eye and around the cheek.



The dark wings have buff edges and show iridescent tips that may appear green, blue, violet, red, orange or yellow in good light. The blue-gray tail has a dark subterminal band. Legs and feet are red. Females are similar but have a gray forehead, lack the pinkish breast and show less wing iridescence.



Common bronzewings are shy birds and are generally cautious, though not skittish, around humans. They feed on the ground, often scratching through leaf litter in their preferred low scrub habitat, and will freeze if threatened, flushing into rapid flight only when a predator approaches more closely. These birds are frequently solitary but may be found in pairs or small groups near superior water sources and feeding areas.



Baltimore Oriole:



Named for the colorful coat of arms carried by Lord Baltimore in the 17th century, the Baltimore oriole is a brilliantly colored songbird welcome in many backyards. Once combined with its western counterpart as a single species, the northern oriole, the Baltimore oriole today is recognized as a distinct species and is the state bird of Maryland.



These orioles can be very shy, solitary birds for most of the year, though after the nesting season they are likely to appear in pairs or small mixed flocks, particularly while foraging in the fall and winter.



They forage in shrubs, bushes and trees, hunting for insects or picking through flowers. Where the Baltimore oriole’s range overlaps with the Bullock’s oriole, interbreeding and hybridization is common.



Swallow-Tailed Hummingbird:



One of the largest hummingbirds, the swallow-tailed hummingbird is also one of the most beautiful, graceful and distinctive. Because of its large size, the swallow-tailed hummingbird is a dominant bird and can be very aggressive.



Both males and females will dive bomb and chase intruders away from feeders, nectar-rich flowers and nesting areas. In addition to feeding on nectar, they will hawk insects in flight. Swallow-tailed hummingbirds are common year-round residents in southeastern Brazil, southern Bolivia and along the coast of French Guiana.



They can be readily found in urban and suburban open areas such as parks and gardens, where they will feed on flowers or flowering trees. These hummingbirds do not migrate.



American Goldfinch:



With its bright yellow plumage, perky behavior and melodious song, the American goldfinch is one of the most highly sought after backyard birds. Found throughout the United States, this common bird is a welcome guest for many backyard birders.



American goldfinches are one of the most common and widespread backyard birds in North America and can be found in open fields, scrub forest and suburban habitats. Populations in southern Canada and the southern United States migrate seasonally but may linger where food sources are abundant.



Goldfinches may congregate in small or medium mixed flocks during the fall and winter, often with pine siskins or other finches. These birds are mildly aggressive while feeding and become more territorial during breeding season. American goldfinches can easily feed upside down and are often found clinging to seed heads or specialized feeders.



Atlantic Puffin:



Often called the "clown of the sea" or "parrot of the sea," the Atlantic puffin is instantly recognizable for its colorful bill and clown-like eye markings. Unique and engaging, this bird is also the official provincial birdof Newfoundland and Labrador. Aptly named, Atlantic puffins congregate on the Atlantic coast.



They can be found year round on rocky islands from northern Maine to Nova Scotia and Labrador, as well as along the western coast of Greenland. In summer, these birds breed and nest in colonies on rocky coastlines, cliffs and islands from northern Maine and eastern Canada to the United Kingdom and Scandinavia, including suitable locations in large bays.



Atlantic puffins spend the winter at sea, with a range extending from the Arctic Circle to as far south as North Carolina, and in Europe as far south as Spain and Morocco. These are social birds that gather in large summer colonies with other seabirds, where they can become quite tame.



While awkward on land, they are superb swimmers and can dive up to 200 feet deep while fishing, though shallower dives are more typical. They arrange several fish perpendicular to their bills when hunting and transport the food back to the nest with heads and tails dangling out either side of their bills


Thursday, August 14, 2014

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Did You Know?

The Ross & Filchner-Ronne ice shelves in the Antartic are the world's largest floating expanses of ice.

#InterestingFacts #EducationalSchoolTours



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Quote of the day

#EducationalSchool #OEATours



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Wednesday, August 13, 2014

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Do You Know What A Peninsula is?

A piece of land almost surrounded by water or projecting out into a body of water.






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The World's Strongest Earthquakes

1.Chile (Valdivia) 9.5-1960
2.Alaska (Good Friday Earthquake) 9.2 1964
3.Underearth Earthquake off the coast of Sumatra 9.1 2004
4.Russia (Kamchata) 9.0 1952
5.Off the coast of Ecuador 8.8 1957
6.Alaska (Andereanof Island) 8.8 1957
7. Alaska (Rat Island) 8.7 1965
8.North Sumtra 8.6 2005
9 .India (Assam) 8.6 1950
10.Indonesia (Banda Sea) 8.6 1938

#EducationalSchoolTours 



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Tuesday, August 12, 2014

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The Deepest Sea Depths

1.Bellingshausen Sea 4,830 m
2.Dumont d'Urville Sea 4,725m
3.Amundsen Sea 4,460m
4.Ross Sea 4,175m
5.Weddell Sea 4,037m
6.Cooperation Sea 3,500m
7.Davis Sea 3,082m

#EducationalScholTours #OEATours



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Monday, August 11, 2014

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The World's Largest Coral Reefs

1.Great Barrier Reef ,Australia 348 700sq.km
2.New Caledonia Barrier Reef,New Caledonia 15,743sq.km
3.Andros ,Bahamas 6000sq.km
4.Belize Barrier Reef,Belize 963sq.km
5.East Rennell,Solomon Islands 370sq.km
6.Tubbataha Reef, Philipines 332sq.km

#CoralReels #OeaTours #AdventureSchoolTours



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The Largest Meteorite Finds:

Mass in tonnes

1.Hoba,Namibia (60 tonnes)
2.Campo-del-Cielo ,Argentina (37 tonnes)
3.Cape York, Greenland (31tonnes)
4.Armanty,China (28 tonnes)
5.Bacubirito ,Mexico (22tonnes)
6.Cape York ,Greenland (20.1 tonnes)
7.Mbosi,Tanzinia (16tonnes)
8.Campo-del-Cielo,Argentina (14,9 tonnes)

#SolarSystem #OEATours




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Did You Know?

The Great Rift Valley runs southward from Syria to Mozambique for 6,000km.

#InterestingFacts #EducationalSchoolTours



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Tuesday, August 5, 2014

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Adventure school camps can certainly get better if you let us plan and organize it for you: 

Click on the link  http://bit.ly/1ivpu53 for more info.

#OEATours 




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Monday, August 4, 2014

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There is no better way to plan an educational school trip than with us:

Click on the link   http://bit.ly/1ivpu53   to find out more about our services.

#OEATours



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Wednesday, July 30, 2014

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Interesting Facts About Natural Disasters

The Swayed Chile
-Chile is known to have faced the largest earthquake to humankind in the 1960's. 
-It did 9.5 on the Moment Magnitude scale, which resulted in a tsunami that  damaged 9,000 miles of the Californian coast.

#EducationalSchoolTripFacts #OEATours



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Photo Of The Day

#EducationalTours   #EducationalSchoolTrips



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Tuesday, July 29, 2014

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Interesting Facts About Nature

Green Waters
-85% of plant life is found in the ocean.

Wonders of Oxygen
-It enables animals to live ,but it can also turn a lobsters colorless blood to blue when it is exposed to oxygen.

#EducationalToursFacts  #OEATours



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Effects of outdoor education for children.

-Children who have partcipated in an outdoor educational program, show signs of positive gains in conflict resolution.
-After 6-10 weeks later children who attend outdoor education programmes have an increased self esteem, better relationships with peers, better problem solving skills & an increased motivation to learn.
-Children who also take part in outdoor education tend to have an increased score in their science marks after being exposed to such.

#EffectsOfOutdoorEducationEducationOnKids  #OEATours



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Monday, July 28, 2014

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Outdoor facts to impress your friends.

-Mosquitoes can smell the carbon dioxide in a humans breath from over 100 feet away.

#InterestingOutdoorFacts #OEATours
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Sunday, July 20, 2014

What is Desertification?




Desertification is the process of productive turning into non-productive desert. This happens as a result of poor land management and occurs mainly in areas bordering on the desert and with a rainfall of less than 600mm annually. An example of where this had taken place is in the Sahel, south of the Sahara Desert, where the desert moved 100km south between 1950 and 1975.



Desertification causes the land to become unproductive and unable to support life, which affects wild species, domestic animals, farming crops and the people inhabiting the land. The unproductivity of the land also leads to very little plant cover which accelerates soil erosion by wind and water. Water does not soak into the soil to provide moisture to plants and not many plants can survive the drought. Once the process of desertification has started, the deterioration will worsen.



The main cause of desertification worldwide is overgrazing. The plants in these dry areas have adapted to being eaten by large grazing mammals that move with the patchy rainfall of the region. Early cattle farmers that lived in these regions learned from the animals and moved according to the availability of food and water. The regular stock movement prevented overgrazing of plant cover. Unfortunately modern times lead to the use of fences in order to mark land, which prevented both domestic and wild animals from moving according to food and water availability, which in turn lead to overgrazing.



The effects of desertification can be prevented by using boreholes and windmills, allowing livestock to graze in areas that could previously only be utilised during the rainy season. Poor planning and management regarding the provision of drinking water has contributed to the massive advance of deserts in the past decades.



The following poor management decisions all eventually lead to desertification:



·         Farming on land where there is a high risk of crop failure and low economic returns,



·         Destruction of vegetation in dry regions for housing or fuelwood



·         Poor grazing management after burning of vegetation



·         Incorrect irrigation practices leads to a build-up of salts in the soil, preventing plant growth (salinization)



 



Any of the above can worsen when combined with a dry climate. Increasing the human population in these areas contributes to poverty, which forces the poor to overuse their environment in the short term without planning for the future and the consequences of their actions.



 



Desertification can be stopped by reducing the amount of animals dependent on the land in order to allow the plants to regrow. This is the only realistic large-scale approach to prevent desertification.



Written by Marleen Theunissen



Creative writer


Friday, July 18, 2014

What is National Arbor Day – and why should we celebrate it?




 



Educating the youth about keeping the environment green has become important across the globe. With this objective in mind, many countries celebrate Arbor Day once a year. On this day, many trees are planted as an effort to place emphasis on the importance of their role. In South Africa, Arbor Day is celebrated throughout a week.



Part of the important lessons learned during this week includes the different aspects of forestry, which has been divided into three categories.



Indigenous Forests provide a home for wildlife and also attract thousands of visitors, which increases a country’s revenue. These Forests provide trees and herbs used to make natural remedies to cure hundreds of people. All the trees act like a barrier against soil erosion and continue to sustain the African wildlife and the environment.



Commercial Forests is the unnatural version of Indigenous Forests, with a role equally as important. It provides jobs to people in the area and also wood needed in the industry. These woods are used as a rural income generation through massive plantation work and revenue earning from wood, in order to improve socio-economic conditions of the rural masses.



Lastly, Metropolitan Forests refers to the trees, plants and lawns which are grown in cities and towns across the country. The small pieces of greenery scattered through the concrete and brick provides life to our environment, not mentioning the fresh air it produces.



During National Arbor Week, South Africans are educated about trees and how they affect our everyday lives. The dangers of forest fires are reiterated and the importance of the forestry industry, as well as trees in general, is emphasized. Trees are planted and our environment is made greener. Many sponsors combine their efforts in different forms and most of the week’s events are organized by the Department of Agriculture, Forestry and Fisheries (DAFF), with Food and Trees For Africa (FTFA) short on their heels, teaching poorer communities how to develop and maintain their own food garden. National Arbor Day takes place during the first week of September.



Written by Marleen Theunissen



Creative writer


Thursday, July 10, 2014

Plant diversity in South Africa


Plant and animal life around the world is incredibly diverse. In fact, many of the species that exist are yet to be discovered, and of those that we have discovered and documented, there are many variations,each unique in its own way, specialized to fit within its own environment. South Africa’s natural landscape is one of the most famously diverse in the world, with spectacular indigenous and alien plant species alike making the landscape look picturesque, bringing in tourists year-round.



The southwestern area of South Africa is the home of the fynbos ("fine bush"), which is composed of ericas, proteas and the grass-like restios. The Proteas (Proteaceae), a family of blossoming flower which includes the King protea, South Africa’s national flower, and others of broadly similar shape, the pincushion-likeleucospermum, and spiky leucadendrons.The Ericaceae, the largest genus of flowering plants in South Africa are more delicate than the rest that belong to this family. The diversity of species found in this family, as well as the incredibly wide range of colours and blossoming habits, means that at any one time of the year, at least one of these species will be in bloom.



 



Among these highly regarded indigenous species, one can find the incredible range of South Africa’s close to 500 species of wild orchids, which typically grow in mountainous ranges, as well as a number of species of irises, lilies and pelagoniums that have found their way around the world, and can now be found in gardens and parks alike throughout the globe.




Monday, June 30, 2014

The Big 5


When you think of ‘The Big 5’, the animals in question are immediately recognized worldwide. The term originated as a way of describing these five species as the most difficult for hunters to capture or kill, due to their ferocity and their likelihood to stand their ground and retaliate. Here is a look at the five animals known wide as Africa’s Big Five.



 



The African elephant (Loxodonta africana) is the largest mammal in the world and remarkably adaptable. Elephants live in woodlands, forests, deserts and savanna, spread across 37 countries in sub-Saharan Africa. The demand for ivory led to a dramatic decrease in elephant numbers, especially during the 1970's and 1980's. A ban on all ivory trade has helped stabilize the population to around 600,000 in the last decade. But poaching is still a major issue, especially in parts of Africa where there is political instability. The African elephant is listed as "vulnerable" by the IUCN Redlist of threatened species.



 



The African lion (Panthera leo) king of the sub-Saharan savanna, has been admired by man for its beauty and strength for thousands of years. It's one of the most exciting animals to see on safari. These beautiful, large cats are excellent hunters but you're more likely to see one sleeping than hunting.



Lions are very social animals, unlike other cats, they live in prides of several females, their young and a couple of males. They will cooperate when hunting difficult prey like a buffalo, but usually they'll take down an antelope on their own. Females hunt more than males and all lions will happily scavenge given half a chance. Lions ambush their prey, (like leopards), rather than track and chase (like hyenas).



 



The African leopard (Panthera pardus) is more numerous than the African rhino in the Big 5 pantheon, but they are just as difficult to spot on safari in Africa. Leopards use trees as observation platforms and for protection, so you have to remember to look up to see this solitary, beautiful cat. Leopards are shy and nocturnal, quite modest for a cat that can climb, swim and live in a wider range of habitats than most other wild cats.



Leopards live throughout sub-Saharan Africa, they cover a wide range of habitats from the thick forests of West Africa to the highlands of Ethiopia, but they prefer thick bush and riverine forests. A leopards' only predator is man. Man has succeeded in getting this magnificent cat on the IUCN's "near threatened" list by reducing the leopards' habitat, depleting its prey and hunting it.



 



Black rhinos are usually solitary, whereas white rhinos tend to be more social and live in groups. Black rhinos live in savanna, shrub and tropical bush areas, they eat leaves, bushes, small tree branches and shoots. White rhinos live in the savanna and are grazers.



Their lips are what distinguish them from one another, a black rhino has a prehensile lip to strip leaves off bushes. A white rhino has a long, flat lip adapted for grazing. Unfortunately, as a result of poaching, these magnificent animals are rarely found in the wild, and very few remain alive in conservation areas with every effort being taken to promote the survival and repopulation of two of the most important species on the planet.



 



Rhinos are large mammals (only second in size to the elephant), an adult white rhino can weigh in at close to 3000kg. Rhinos are indeed shortsighted, a little bad tempered, but magnificent to look at. Unfortunately there aren't too many to look at these days due to poaching. Rhino horn, used for medicinal purposes to reduce fevers, is much prized in Asia. In 2012, rhino horns were valued at R600 000 per kilo, with each horn weighing in at about 3-4kg, that's a lot of temptation for poachers. If they manage to avoid poachers, rhinos can live up to 30-50 years.



 



Cape Buffalo are commonly found in protected wildlife throughout sub-Saharan Africa. Four sub-species of African Buffalo have been recognized and reflect the different regions and habitats they live in: Forest Buffalo (S. c. nanus); West African Savanna Buffalo (S. c. brachyceros); Central African Savanna Buffalo (S. c. aequinoctialis); and Southern Savanna Buffalo (S. c. caffer). The forest buffalo are smaller than those found in the savanna.



 



Cape buffalo are large. Adults stand 4-6 feet tall and males weigh in at around 700 kg's. Even lions don't dare take a chunk out of this beast unless they have friends helping them. Cape Buffalo are said to have killed more big game hunters than any other animal in Africa and are one of Africa's most dangerous animals. Needless to say, the Cape buffalo has never been domesticated, but if left alone they are quite placid.



 


Friday, June 27, 2014

When you think elephant, you probably think trunk.


 An adult African elephant's trunk is about seven feet two meter long! It's actually an elongated nose and upper lip. Like most noses, trunks are for smelling. But they're also for touching and grasping.



When an elephant drinks, it sucks as much as 7.5 liters of water into its trunk at a time. Then it curls its trunk under, sticks the tip of its trunk into its mouth, and blows. Out comes the water, right down the elephant's throat.



Since African elephants live where the sun is usually blazing hot, they use their trunks to help them keep cool. First they squirt a trunkful of cool water over their bodies. Then they often follow that with a sprinkling of dust to create a protective layer of dirt on their skin (think elephant sunscreen!). Elephants pick up and spray dust the same way they do water—with their trunks.



Elephants also use their trunks as snorkels when they wade in deep water. An elephant's trunk is controlled by many muscles. Two fingerlike parts on the tip of the trunk allow the elephant to perform delicate maneuvers such as picking a berry from the ground or plucking a single leaf off a tree.



The elephant can also use its trunk to grasp an entire tree branch and pull it down to its mouth. Elephants also use their trunks to grab clumps of grass and shove the greenery into their mouths. When an elephant gets a whiff of something interesting, it sniffs the air with its trunk raised up like a submarine periscope.



If threatened, an elephant will also use its trunk to make loud trumpeting noises as a warning. Elephants are social creatures. They sometimes hug by wrapping their trunks together in displays of greeting and affection.


Thursday, June 26, 2014

Facts about forests


Enviromental Facts -




  • Forests cover 30 percent of the planet’s total land area. The total forested area in 2005 was just under 4 billion hectares, at least one third less than before the dawn of agriculture, some 10,000 years ago.



 




  • The ten most forest-rich countries, which account for two-thirds of the total forested area, are the Russian Federation, Brazil, Canada, the United States, China, Australia, Democratic Republic of Congo, Indonesia, Peru and India.



 




  • Six million hectares of primary forest are lost every year due to deforestation and modification through selective logging and other human interventions. More than one-third of all forests are primary forests, defined as forests where there are no clearly visible indications of human activity and where ecological processes are not significantly disturbed.



 




  • Primary forests shelter diverse animal and plant species, and culturally diverse indigenous people, with deep connections to their habitat.



 




  • Only 20 per cent of the world’s forests remain in large intact areas. These forests consist of tropical rain forests, mangrove, coastal and swamp forests. Monsoon and deciduous forests flourish in the drier and more mountainous regions.



 




  • Trees quite literally form the foundations of many natural systems. They help to conserve soil and water, control avalanches, prevent desertification, protect coastal areas and stabilize sand dunes.



 




  • Forests are the most important repositories of terrestrial biological biodiversity, housing up to 90 per cent of known terrestrial species.



 




  • Forest animals have a vital role in forest ecology such as pollination, seed dispersal and germination.



 




  • Trees absorb carbon dioxide and are vital carbon sinks.



 




  • It is estimated that the world’s forests store 283 Gigatonnes of carbon in their biomass alone, and that carbon stored in forest biomass, deadwood, litter and soil together is roughly 50 per cent more than the carbon in the atmosphere.



 




  • Carbon in forest biomass decreased in Africa, Asia and South America in the period 1990–2005. For the world as a whole, carbon stocks in forest biomass decreased annually by 1.1 Gigatonne of carbon (equivalent to 4 billion 25kg sacks of charcoal).



 




  • The loss of natural forests around the world contributes more to global emissions each year than the transport sector.



 




  • World population currently stands at 6.5 billion people. It is projected to grow to 9 billion by 2042.  The expansion of agricultural and industrial needs, population growth, poverty, landlessness and consumer demand are the major driving forces behind deforestation.



 




  • Most deforestation is due to conversion of forests to agricultural land. Global removals of wood for timber and fuel amounted to 3.1 billion cubic metres in 2005.



 




  • Worldwide, deforestation continues at an alarming rate, about 13 million hectares per year, an area the size of Greece or Nicaragua.



 




  • Africa and South America have the largest net loss of forests. In Africa it is estimated that nearly half of the forest loss was due to removal of wood fuel.



 




  • Forests in Europe are expanding. Asia, which had a net loss in the 1990s, reported a net gain of forests in the past five years, primarily due to large-scale forestation in China.



 




  • Eighty per cent of the world’s forests are publicly owned, but private ownership is on the rise, especially in North and Central America and in Oceania.



 




  • About 11 per cent of the world’s forests are designated for the conservation of biological diversity. These areas are mainly, but not exclusively, in protected areas.



 




  • Around 10 million people are employed in conventional forest management and conservation. Formal employment in forestry declined by about 10 per cent from 1990 to 2000.


Wednesday, June 25, 2014

Africans Must Adapt to Drought in Warming World: Report


Climate change will call for more flexible solutions to water challenges.



 



A new report cautions African countries to look beyond dams (like this one in Zimbabwe) to deal with water supply issues for an uncertain future.



Photograph from Images of Africa Photobank/Alamy



Ker Than



For National Geographic News



Published December 16, 2011



This story is part of a special National Geographic News series on global water issues.



Flexible farming methods and the ability to quickly change tactics to deal with unpredictable swings in rainfall will be vital if African nations are to survive climate change in the coming decades, scientists say.



"Adaptability I think will be the key," said Mark Mulligan, a geographer at King's College London in the United Kingdom.



"There's the assumption that we know what the future will be like. We do—more or less—for temperature, but we really don't for rainfall," he said.



Global warming is expected to raise temperatures around the globe in the coming decades. Perhaps less intuitively, it will also increase rainfall in other parts of the world because as the temperature goes up, evaporation speeds up, and the air's ability to retain moisture rises.



More evaporation creates a hydrological cycle that is turbocharged with energy, leading to more rainfall. However, the geographical distribution of rainfall will change in a warmer world, greening some current arid zones and triggering droughts in other areas such as the American southwest.



See the global impact of your water footprint >>



Description: global water footprint



Click to start interactive >>



 



Affecting Africa



According to a five-year global research project conducted on behalf of the Consultative Group on International Agricultural Research (CGIAR), climate change is expected to lead to unpredictable changes in rainfall patterns in most African river basins.



This could present opportunities for improved agriculture in some dry regions that get wetter, or—if farmers are not well prepared—could lead to less food production and increased poverty as agriculture struggles to adapt.



"Climate change introduces a new element of uncertainty precisely when governments and donors are starting to have more open discussions about sharing water resources and to consider long-term investments in boosting food production," Alain Vidal, director of the CGIAR's Challenge Program on Water and Food (CPWF), said in a statement.



"To help prevent this uncertainty from undermining key agreements and commitments, researchers must build a reliable basis for decisions, which takes into account the variable impacts of climate change on river basins," Vidal said.



(Related: "India and Pakistan at Odds Over Shrinking Indus River")



To counter such uncertainty, nations must remain nimble and provide an enabling environment for their farmers to adapt to a highly uncertain and geographically variable “changescape,” said Mulligan, who was the lead author of a report published in January in the journal Water International that detailed the CGIAR findings.



"The key is to be thinking about flexible arrangements that are fine-tuned to local geographical conditions and that can change quickly and effectively as the future unfolds," Mulligan said.



"Because we've had 10,000 years of [climate] stability, we've grown accustomed to assuming that things don't change and so we now support very high populations that are dependent on sophisticated agricultures, markets and infrastructures that may not adapt well to the period of environmental instability that is ahead of us," he said.



"Bottom up" Solutions



For example, large dams that retain water to supply urban areas, for irrigation projects, and to generate hydropower—of which there are at least 36,000 around the world—are usually designed on the basis of historical river flow data that climate scientists warn could become obsolete in a warming world where river courses can change.



Because large dams are significant and long-term investments they cannot easily be adapted to respond to the implications of changing climate, Mulligan said.



A more flexible solution, he argues, is rainwater harvesting: the construction of a series of small, farm-scale rainwater harvesting schemes, or "micro-dams,” that capture rainfall for agricultural use near the point at which it will be used rather than trapping it at a single large dam and then pumping it elsewhere.



(Related: "See Spectacular Video of a Historic Dam Removal")



Also, because the pattern of rainfall change across Africa is essentially unpredictable, CGIAR advocates a bottom-up approach to adaptation, in which solutions are highly specific to local geographical conditions rather than being defined on the basis of regional or national-scale generalities.



The role of African governments, Mulligan said, will be to facilitate locally driven adaptation and to stay out of the way of sustainable development.



"The impact of climate change on water and food security will be different in different parts of a river basin, even on different sides of a hill," he added.




"So the real adaptation will have to come from the farmers up. They'll be able to react in a way that is specific to their specific environment and needs."