Trying out the new toy in climate fixes

Interest in geoengineering is on the rise, but we must be wary of jumping down a slippery slope from which there is no going back.

Recent extreme heat waves reinforce concerns that the slow pace of action against climate change is inadequate, raising interest in new fixes called geoengineering, but this warrants caution.

Proposed geoengineering fixes fall broadly between reflecting sunlight and heat back into space, or sucking carbon dioxide out of the atmosphere.

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