Carbon Emissions Are Finally Falling
The good news: The Earth got an unexpected reprieve in September when the International Energy Agency found that worldwide carbon emissions had fallen 2.6 percent in 2009, the biggest reduction in 40 years. Of course, the main driving force behind the fall was the global economic crisis, which resulted in lower industrial output. But the IEA also credited new emissions standards and energy efficiency policies in the United States, Europe, and China. Since 2007, U.S. emissions have fallen 9 percent -- the first decline in a century -- thanks in large part to reduced usage of coal. The IEA is now arguing the recession will make it much less difficult to reach the emissions reductions needed to avert the worst effects of climate change.
On the other hand: When the global economy begins to heat up again, emissions are likely to increase along with it, particularly in Asia's rapidly growing economic powers, India and China. And with next month's Copenhagen summit scuttled before it even begins, world leaders appear no closer to the kind of international regulation that could make the recent gains permanent.






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