Biodiversity and Species Extinction

As a result of human activities, plant and animal species of the word-wide are dying out a rate believed to be up to 1000 times the natural rate of extinction.  Some scientists estimate that currently as many as 137 species might go extinct each and every day, which adds up to an astounding 50,000 species currently going extinct on Earth every year.   At such a rate, it is estimated that 10 to 20 percent of all life on Earth will go extinct in the next 20 to 50 years.   Most of such extinctions will occur as a result of human activities, including destruction of ecosystems, indiscriminate use of pesticides, draining and filling of wetlands, over-fishing, urbanization, converion of lands to agricultural use, pollution, and global warming from human activities and CO2 emissions.


~ by americanpresidents on February 23, 2010.

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