Thanks to the AAAS blog Science Insider:
• According to PEW, a declining number of Americans see climate change occurring, 58% in October 2009, down from 71% in April 2008. The numbers seeing climate change as anthropogenic are down to 36%, from 47% in 2008.
More people believe the problem is serious than believe it is anthropogenic.
Very Serious/Serious/Don’t Know
Fewer see solid evidence of global warming, from 2008 to 2009:
%2008—>%2009 (net change)
Dem 83—>75 (-12%)
Rep 49—>35 (-14%)
Ind 75—>53 (-22%)
Half of Americans favor setting limits on greenhouse gas emissions even if energy prices go up, though only 14% have heard a lot about cap and trade. Of that group, emissions limits are opposed 2 to 1.
Where I live,
• Temperature would rise 6 – 7°C (increase is greater on land). Forest fires would increase.
• Some crop yields decrease 40%, perhaps more because estimates about decreases in crop yield don’t include more weather extremes.
• Assuming a population of 7.5 billion (OK, where did the others go?), 3 billion would be living with water shortage, less than 1000 cubic meters/year.
• Now, 600 million are living within 10 meters of sea level, so any rise would increase flooding and reduce freshwater availability.
• In eastern North America, the hottest day of the year could be 10-12°C, 18-22°F, warmer.
• Water runoff could decrease 70% around the Mediterranean, southern African, and large areas of South America.
• Himalayan glaciers will be reduced significantly by 2050, even at less than 4°C increase. Almost a quarter of China’s population lives in regions where glacial melt is the principal dry season water source, and 70% of the Indus river basin flow comes from glacier melt.