Can we sustainably provide food, water, and energy to a growing population during a climate crisis?
And Earth-bound astronomers should be able to tell if someone is out there doing it, a physicist says.
Air travel, shipping, and manufacturing are huge sources of carbon that we lack good options for addressing.
Bill Gates’s Breakthrough Energy Ventures is involved in the deal.
The biggest test of cap-and-trade to date may be too timid to make much of a difference for the world’s largest carbon polluter.
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