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ar81 · 08-14-2008, 08:56 PM

In the last 400,000 years the average proportion of CO2 was between 180 and 300 parts per million.
Last year it was 1950 ppm.

The average temperature during that period was last met in the 1930s and it has been growing. We are above 0.7 Celsius above that average, which is far more than ever in the last 400,000 years. Ecosystems won-t withstand more than 2 Celsius above average. More than that and there will be a world agricultural crisis and world level starvation like never before.

I got that from a conference on global warming with PhD Lara Hansen from WWF.

08-14-2008, 08:56 PM	#8 (permalink)
ar81 Senior Member Join Date: Aug 2008 Posts: 1,939	In the last 400,000 years the average proportion of CO2 was between 180 and 300 parts per million. Last year it was 1950 ppm. The average temperature during that period was last met in the 1930s and it has been growing. We are above 0.7 Celsius above that average, which is far more than ever in the last 400,000 years. Ecosystems won-t withstand more than 2 Celsius above average. More than that and there will be a world agricultural crisis and world level starvation like never before. I got that from a conference on global warming with PhD Lara Hansen from WWF. __________________ Freedom - When people learn to embrace criticism about politicians, since politicians are just employees like you and me.