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The former Chicago mayor is launching a company to help cities pursue money-saving infrastructure investments.
Scientists are racing to study and conserve wild varieties of crops before they disappear. Such weeds could bolster agricultural yields as the climate changes.
The Environmental Defense Fund has been slammed by other greens for a recent study that found some fracking wells weren't as bad for the climate as assumed. Here the group explains its approach.
Hot air, rising seas, and other findings from NOAA's latest State of the Climate report.
The company picks artists who use recycled materials in their art, gives them a monthly stipend, a studio space -- naturally, it's a shipping container -- and "scavenging privileges".
A bike club for African American women takes off in Washington, D.C., as cycling gains momentum in communities of color nationwide.
A bombshell new paper says climate change might make the most destructive storms on Earth even more dangerous. But the findings are already being challenged.
Rising food prices are one of the hidden causes of Egypt's conflict. And they'll keep fueling discontent until we come up with a better system.
Jonathan Haidt on the psychology of politics, the emotions behind the Tea Party — and why as a self-described centrist, he thinks a Republican crackup may be coming.