During these last warm days of summer, how about some climate cooling? This unusual idea is being proposed by David Keith, professor of public policy and applied physics at Harvard. In an article in the MIT Technology Review, Keith says that reducing carbon emissions alone won’t be enough to stave off the arctic ice melt or loss of crops due to higher temperatures. He says that “geo-engineering” is one way to do this. This idea’s not without risks, however, and of course it is still untested.
The issue of climate change though is quite serious, and according to Turn Down the Heat: Why a 4°C World Must Be Avoided, a report by the Potsdam Institute commissioned by the World Bank, the scenario of a world warming to 4°C is likely in this century. It should be noted that a warming of 2°C is considered by many to be the “tipping point” for irreversible environmental damage.