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Land Resources in Africa

| January 20, 2013 | 0 Comments

Africa is the second largest continent in the world after Asia, and with a total land area of more than 3,025.8 million hectares (ha), its landmass is more than three times that of the United States of America. Of Africa‚Äôs 53 countries, Sudan is the largest, covering 250.39 million ha and Seychelles the smallest, covering […]

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Forest Restoration

| January 20, 2013 | 0 Comments

Globally, forests cover nearly one third of the land area and they contain over 80% of terrestrial biodiversity. Both the extent and quality of forest habitat continue to decrease and the associated loss of biodiversity jeopardizes forest ecosystem functioning and the ability of forests to provide ecosystem services. In the light of the increasing population […]

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The Law of the Sea

| January 20, 2013 | 0 Comments

Since humanity first set forth upon the seas, the issue of sovereign control over the oceans has been an ongoing concern. Prior to the 20th century, the oceans had been subject to the freedom of the seas doctrine. This principle, adopted in the 17th century, limited national rights and jurisdiction over a narrow band of […]

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Rivers

| January 20, 2013 | 0 Comments

Rivers are of immense importance geologically, biologically, historically and culturally. Although they contain only about 0.0001% of the total amount of water in the world at any given time, rivers are vital carriers of water and nutrients to areas all around the earth. They are critical components of the hydrological cycle, acting as drainage channels […]

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Climate Change

| January 20, 2013 | 0 Comments

Scientific-based prediction of the climate produces knowledge of two types. There is a prediction of environmental parameters such as temperature and wind and moisture. There is also an estimate of the uncertainty of that prediction. To the scientist the estimate of the uncertainty is a measure of how probable it is that the prediction is […]

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