(CNN)To avoid a global warming catastrophe by the end of the century, humans may need to actually hack the climate.
Whether you call it hacking, or "fiddling with the knobs in the climate system," or the less-imaginative "geoengineering," it revolves around this question: Can humans game the system by using science to reverse global warming?
One way to keep global average temperatures from warming beyond a catastrophic 2-degree-celsius tipping point, according to some experts, is to suck massive amounts of CO2 out of the atmosphere.
Will hacking nature protect us from climate change? - CNN.com
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