give me three good examples of the scientific evidence about global warming?



  1. 0 Votes

    There has been a 34% increase of the atmospheric levels of greenhouse gas carbon dioxide since pre-industrial times which equals 280 parts per million(2004 Carbon Dioxide Information Analysis Center). Current carbon dioxide concentration levels are the highestin 650,000 years. The director of NOAA, stated that our earth is warming at a rate of 5.4 to 6.3 degrees Fahrenheit per century. We are experiencing extreme weather conditions: increase of droughts and floods, tropical storms, and 1998 was the hottest year on record. Sea Ice and Glaciers are rapidly depleted. North America’s largest glacier, the Bering Glacier has lost 7 miles in length. Artic sea ice has lost 250 million acres. The huge amounts of carbon dioxide released into the air is causing acidification of our oceans and destroying most of the world’s reefs.

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