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A paper recently published by The Tellus Institute attempts to reconcile carbon abatement programs with national economic goals. Written by Stephen Bernow, Alison Bailie, William Dougherty, Sivan Kartha, and Michael Lazarus, the paper posits that the risk of catastrophic global climate disruption from human activities could be mitigated if atmospheric [CO.sub.2] concentrations were stabilized at approximately 450 parts per million, about 60% above pre-industrial concentrations. The authors state that meeting this goal requires keeping total global carbon emissions within 500 billion tons over the 21st century, rather than the 1.4 trillion tons towards which the world is now headed.
Achieving this goal, they say, would require that annual global carbon emissions from fossil fuels be at least halved from its current 6 million tons instead of tripled by the end of the century, and that deforestation is halted. For the U.S., meeting these goals would require a twenty-fold decrease in carbon intensity and more than ten-fold decrease in emissions over the century.
The study purports to show that the U.S. could dramatically reduce its greenhouse gas emissions over the next two decades while the economy ...