Scientists Propose Adding Lime to Oceans to Reduce CO2

The oceans already absorb megatons of atmospheric carbon, but scientists say that there's a way to boost this so that CO2 levels could drop to pre-industrial age levels. The answer sounds like a cocktail recipe: add lime. Limed seawater has boosted alkalinity, which lets it absorb more CO2 and stops it from releasing… » 7/21/08 12:20pm 7/21/08 12:20pm