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The Environment in Focus

Climate Engineering is a Controversial "Plan B" for Global Warming

By Tom Pelton
Published March 19, 2014 at 11:42 AM EDT

Can we engineer Earth's atmosphere to stop global warming?

The 1991 eruption of Mount Pinatubo in the Philippines blanketed the Earth with a haze of sulfur dioxide that temporarily cooled global temperatures by one degree Fahrenheit. Some scientists now see the intentional injection of sulfur dioxide into the stratosphere as a potentially cheap and easy way to counteract global warming. Others warn of potentially deadly unintended consequences.  

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Tom Pelton
Tom Pelton, a national award-winning environmental journalist, has hosted "The Environment in Focus" since 2007. He also works as director of communications for the Environmental Integrity Project, a non-profit organization dedicated to holding polluters and governments accountable to protect public health. From 1997 until 2008, he was a journalist for The Baltimore Sun, where he was twice named one of the best environmental reporters in America by the Society of Environmental Journalists.
See stories by Tom Pelton