Attempts to manipulate climate to counteract current trends of global warming could cause more problems than they solve, a study of weather data suggests.
Major volcanic eruptions spew large amounts of tiny particles, or aerosols, high into the atmosphere, where they scatter light back to space and significantly cool Earth for months to years (SN: 2/18/06, p. 110). Some researchers have proposed deliberately lofting tons of tiny particles into the stratosphere to achieve the same effect. That's probably not a good idea, says Kevin E. Trenberth, a climatologist at the National Center for Atmospheric Research in Boulder, Colo.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.