America Is Winning a Race That It Never Signed Up For
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When it comes to reaching international deals on climate change, the U.S. hasn’t had much success. No one has. That’s too bad, because when it comes to cutting greenhouse-gas emissions, America ranks among the best in the world.
The chart above shows the carbon intensity of the U.S. economy since 1949. The blue line shows metric tons of carbon dioxide produced per million dollars of economic output.