WASHINGTON — Here’s one plus from the global economic recession: Carbon dioxide pollution last year dropped for the first time in a decade.
But it didn’t last and it wasn’t as big a drop as expected.
Burning fossil fuels to power factories, cars and airplanes spews out greenhouse gases that warm the world. But during the economic downturn, some factories shut down and people didn’t drive or fly as much.
That helped drop emissions about 1.3 percent from 2008 to 2009, according to a study published Sunday in the journal Nature Geoscience.