Far-flung ideas hold promise, but the science still lags
(NEWSER) - Their proposals to combat global warming may sound like science fiction, but geo-engineers insist they can save the planet. Two new reports show that while that may be the case, the science has a long way to go, the Economist reports. The burgeoning field posits that humans can cool the planet via unorthodox ideas such as dumping tons of iron into oceans. In theory, that boosts the growth of algae, which absorb carbon-dioxide emissions. More»