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Forests in Ethiopia play a big role in protecting erosion, as tree roots protect against washouts. Trees also help to keep water in the soil and reduce global warming by uptake of carbon dioxide. Because there are not enough trees, the Blue Nile is carrying all the soil and nutrients in the water to the neighboring countries of Sudan and Egypt.
Smaller areas of anchored kelp are called kelp beds. They are recognized as one of the most productive and dynamic ecosystems on Earth. [ 1 ] [ 2 ] Although algal kelp forest combined with coral reefs only cover 0.1% of Earth's total surface, they account for 0.9% of global primary productivity . [ 3 ]
The Earth’s trees absorb more than 7 billion metric tons of carbon dioxide — about a fifth of what the world lets out into its atmosphere — and release it back as oxygen or bind it into ...
Ethiopia, the third largest country in Africa by population, has been hit by famine many times because of shortages of rain and depletion of natural resources. Deforestation has lowered the chance of getting rain, which is already low, and increased erosion. Berkeley Bayisa, an Ethiopian farmer, offers one example of why deforestation occurs.
A welding hammer strapped to her wrist, Joy Hollenback slipped on blue fins and swam into the churning, chilly Pacific surf one fall morning to do her part to save Northern California's vanishing ...
The kind of intelligence that makes this possible is a little different from how we imagine human intelligence, says Andy Dobson, Ph.D., professor of ecology and evolutionary biology at Princeton ...
In the late nineteenth century, about 30% of Ethiopia was covered with forest. The clearing of land for agricultural use and the cutting of trees for fuel gradually changed the scene, and today forest areas have dwindled to less than 4% of Ethiopia's total land. The northern parts of the highlands are almost devoid of trees.
The church forests in Ethiopia are small fragments of forest surrounding Ethiopian Orthodox Tewahedo Churches. Northern Ethiopia was once covered in forests, but due to deforestation for agriculture, only about 4% of the original forested lands remain. Church leaders have long held the belief that a church needs to be surrounded by a forest ...