Are Humans Responsible? ! If so, should we do anything about it? " ?Moral? imperative # Less-developed nations and poor citizens likely to suffer worst impacts # Impacts on wilderness, wildlife, etc. Erosion, Inupiat village, Alaska Sea level rise in the pacific nation of Tuvalu www.worldviewofglobalwarming.org www.nature.com/.../051219/full/051219-6.html Polar bears drowning and starving Responding to Climate Change ! The ?Earth Summit? Rio 1992 ! UN Framework Convention on Climate Change (UNFCCC) 1994 ! Goal of ?stabilizing? emissions at 1990 levels by 2000 " ??at a level that would prevent dangerous anthropogenic interference with the climate system?? United Nations Comparative Emissions 2002 ! USA #1 per-capita CO2 emissions " ~20 tons/person/year ! Canada #4 " ~14 tons ! UK, Germany, Japan " #8-9-10 " ~10 tons ! China # 23 " ~2 tons maps.grida.no/go/graphic/national_carbon_dioxide_co2_emissions_per_capita capita ! China passed USA as #1 total emitter Comparative Emissions 200 www.ucsusa.org/global_warming/science_and_impacts/science/graph-showing-each-countrys.html Comparative Emissions 2004 Map color - - Total CO2 emissions:
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