17 Apr '11, 9pm

Science Sunday: "The economics (or lack thereof) of aerosol geoengineering"

Science Sunday: "The economics (or lack thereof) of aerosol geoengineering"

First, aerosol geoengineering hinges on counterbalancing the forcing effects of greenhouse gas emissions (which decay over centuries) with the forcing effects of aerosol emissions (which decay within years). Aerosol geoengineering can hence lead to abrupt climate change if the aerosol forcing is not sustained. The possibility of an intermittent aerosol geoengineering forcing as well as negative impacts of the aerosol forcing itself may cause economic damages that far exceed the benefits. Aerosol geoengineering may hence pose more than just “minimal climate risks,” contrary to the claim of Wigley (2006). Second, substituting aerosol geoengineering for CO2 abatement fails an economic cost-benefit test in our model for arguably reasonable assumptions. In contrast, (and as shown in numerous previous studies) fast and sizeable cuts in CO2 emissions (far in excess of the current...

Full article: http://climateprogress.org/2011/04/17/aerosol-geoengineer...

Tweets

The Koch Brothers and Climate Science, Redux

green.blogs.nytimes.com 18 Apr '11, 9pm

Last year, Greenpeace, the environmental group, accused the brothers Charles and David Koch of a stealth campaign to attac...

Green: The Koch Brothers and Climate Science, R...

green.blogs.nytimes.com 18 Apr '11, 10pm

Last year, Greenpeace, the environmental group, accused the brothers Charles and David Koch of a stealth campaign to attac...