Don't look now, but the ground has shifted on global warming. After decades of debate over whether the planet is heating and, if so, whose fault it is, divergent groups are joining hands with little fanfare to deal with a problem they say people can no longer avoid. General Electric is the latest big corporate convert; politicians at the state and national level are looking for solutions; and religious groups are taking philosophical and financial stands to slow the progression of climate change. They agree that the problem is real. A recent study led by James Hansen of the NASA Goddard Institute for Space Studies confirms that, because of carbon dioxide emissions and other greenhouse gases, Earth is trapping more energy from the sun than it is releasing back into space.
The U.N. International Panel on Climate Change (IPCC) estimates that global temperatures will rise 2 to 10 degrees by 2100. A "middle of the road" projection is for an average 5-degree increase by the end of the century, says Caspar Amman of the National Center for Atmospheric Research in Boulder, Colo. What the various factions don't necessarily agree on is what to do about it. The heart of the discussion is "really about how to deal with climate change, not whether it's happening," says energy technology expert James Dooley of the Battelle Joint Global Change Research Institute in College Park, Md. "What are my company's options for reducing greenhouse gas emissions? Are there new business opportunities associated with addressing climate change? Those are the questions many businesses are asking today."
Headline says: Debate's over, text says nothing about a debate... |