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samsaundersleeds (CC BY-SA 2.0)
Two reports suggest that it may be possible to avoid serious climate change, or even to reverse it. But both come with key qualifications—conditions that will have to be met if they are to prove correct.
onecog2many (CC BY 2.0)
Some hope we can lessen the climate impact of CO2 emissions by trapping and storing them underground. But researchers say potential sites vary so much that each will need separate appraisal.
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