“@calestous: #Greenland ice cores show industrial record of acid rain, success of US Clean Air Act http://bit.ly/1jA91t6 ” cc @EconTalker
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@EconTalker change of trend in data would quantify Bruce Yandle's hypothesis of impact of CAA, nothing like empirical measurement@calestous
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@calestous I am curious to see a rate of change impact of the CAA in the ice core samples would serve to (dis)prove Yandle's hypothesisThanks. Twitter will use this to make your timeline better. UndoUndo
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