Proposals for using geoengineering to counteract global warming have been viewed with extreme skepticism, but as projections concerning the impact of climate change have become direr, a growing number of scientists have begun to argue that geoengineering deserves a second look.
There is an overwhelming consensus in the scientific community that human activities are significant contributors to global temperature changes, even if other dynamics are also at work. Though there are still uncertainties about how fast the climate will change, there is substantial agreement that the impacts could become dangerous over the decades ahead. The greatest danger is that we could pass “tipping points” of self-amplifying, irreversible change into a much hotter world.
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