While US leaders remain bogged down in debate over global warming, local communities are acting on their own to hold back rising seas. Witness Miami Beach's elevated streets.
In envisioning future technologies, Cobb writes that we often ignore a crucial question: How will we power tomorrow's heavily automated world without ruining the planet?
Water use in the Golden State fell by 27 percent last month, despite it being the hottest June on record globally.
The big question is whether that modest progress on removing fossil fuel subsidies can be locked in. If oil prices rise, there will be a lot of pressure to reinstitute support.
Researchers find the ground below Washington D.C. is rapidly sinking and urge action to alleviate threats to the city's infrastructure.