Wednesday, December 1, 2010

Impacts on Biodiversity I

Current extinction rates are estimated to be between 1000 and 10000 times the ‘natural’ rate. 50% of the world’s species are either extinct or in danger of becoming extinct. This can be attributed to human activity. Much damage has been done, as rainforests occupy only half of the area that they once did as a result of mass deforestation. Despite the alarming statistics, this detrimental behaviour shows no signs of slowing. Humans continue to deforest at such a high rate, that all rainforests outside of Government-protected reserves are projected to be cut down by the 22nd century.

Deforestation in the Amazon Tropical Rainforest threatens many species of tree frogs, which are very sensitive to environmental changes.

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