There’s multiple ways to go at this — but for this one let’s see who Ken Caldeira is to make this claim. What’s his expertise? How do you know?
Your Personal Footprint
Every year, the average American emits enough CO2 to ultimately melt about 10,000 tons of the Antarctic ice sheet, adding another 10,000 cubic meters of water to the oceans.@CarnegieScience #SeaLevelRisehttps://t.co/T3aU3yffsAphoto: @Wolsenburg pic.twitter.com/RRVGKzNFSG — Ken Caldeira (@KenCaldeira) March 24, 2018 There’s multiple ways to go at this — but for this one let’s see who Ken…
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Four Moves 
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