Can we sustainably provide food, water, and energy to a growing population during a climate crisis?
Harvard geoengineering researcher David Keith explains when to feed the trolls and when not to.
Stanford and Berkeley scientists found that suicides, as well as depressive language on Twitter, rise as temperatures do.
The state leading the clean-energy charge could wind up importing coal power from Wyoming.
And Earth-bound astronomers should be able to tell if someone is out there doing it, a physicist says.
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