Observed and Projected Arctic Ice Cap Loss

Submitted by francob12 on Tue, 07/17/2012 - 10:15
Source

NASA; IPCC

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  • Since 1979 more than 20% of the Polar ice cap has melted away.
  • Satellite observations show a very dramatic and worrying trend with a melting of the Arctic ice cap of about 30%. If this trend followed, all the ice cap would probably melt by the end of this decade.
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Deforestation and the human development index in the Brazilian Amazon

Submitted by Marine3306 on Thu, 07/12/2012 - 13:04
Source
https://www.mongabay.com/images/batfn/09-07/6.html

 

This graph shows that when deforestation did not exist, the quality of life of Amazons was average. Then increased with the initial deforestation.
But over time, more deforestation increases, the quality of life of Amazons decreases.
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Geographic Area

Projected bird species remaining in Brazil resulting from habitat loss or 18,500 acres/year

Submitted by Marine3306 on Thu, 07/12/2012 - 12:08
Source
http://sitemaker.umich.edu/section2group3/results_and_discussion

Since 2000, the number of bird species declined dramatically.

In 2100, it has decreased by 20%. There will only 1450 existing species.
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U.N. report warns environment is at tipping point

RIO DE JANEIRO (AP) – The earth's environmental systems "are being pushed towards their biophysical limits," beyond which loom sudden, irreversible and potentially catastrophic changes, the United Nations Environment Program warned Wednesday.

Report: Global Biodiversity Down 30 Percent in 40 Years

Stephanie Pappas

The world's biodiversity is down 30 percent since the 1970s, according to a new report, with tropical species taking the biggest hit. And if humanity continues as it has been, the picture could get bleaker.

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