A satellite image of a swirling hurricane Men with gas masks and protective suits on The planetary rover Sojourner A large group of refugees huddled together

 HUMAN
 IMPACT

Floods and
 Dams

Ozone and
 Pollution

Deforestation
 and
 Desertification

Overpopulation





By most estimates, the world’s forests continue to disappear at an alarming rate. Logging, fires, and land-clearing for agriculture and grazing account for most of the loss. In some places, the green Earth is turning to desert.
Click on image of clear-cutting in the Rainforest to enter Introduction photo gallery
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