So far, however, relatively little research has been done on any of the approaches or on their potentially substantial and unpredictable side effects. "There’s a lot more talk than work," Caldeira says. "Most of the research has been at the hobby level." Some ideas do not merit much more than that -- scattering reflective particles over a large part of the ocean, for instance, would inevitably pollute it, and the particles would probably wash up on beaches fairly quickly. But others are harder to dismiss.
Sunday, October 26, 2008
Geoengineering: How to Cool Earth--At a Price