1950-2010 (2011) Fraction of surface area that's cold or hot shifting significantly
2011 Hansen_Climate Variability and Climate Change: The New Climate Dice
We're already seeing changes
1. What's already happening?
1900-2010 (2011) Anomalies are clearly trending towards hot and very hot temperatures
1900-2010 (2011) U.S. temperature anomalies not nearly as clear as other parts of the world
1950-2010 (2011) One can see a systematic warming signal in a number of regions
1950-2010 (2011) The extreme heat tail of anomalies has shifted by 1 SD over 3 decades
1950-2010 (2011) We can track how annual anomalies diverge in terms of SDs from the baseline
1950-2011 (2011) The fraction of land area with very high extremes is increasing
1955-2007 (2011) We can track how surface temperatures are changing over time
1955-2011 (2011) The proportion of surface area displaying >3 SDs is growing significantly
Billion Dollar Weather Disasters 1980-2010 economic damage caused by weather vulnerability
Current Impacts - Ecosystems
Current Impacts - Extreme weather events and weather losses
Plant hardiness zone maps seems to be changing rapidly
Vulnerability is increasing
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1950-2010 (2011) Fraction of surface area that's cold or hot shifting significantly
2011_Hansen_Climate Variability and Climate Change
Under-Estimating Climate Risk