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How Are Hospitals Trashing the Planet? Ask a MacArthur Genius.

It’s not every day that an environmental activist becomes a leading voice in health care, but that’s what happened to Gary Cohen, a new MacArthur fellow. By looking under the hood of hospitals, he’s discovered a few nasty secrets — and inspired big changes for a community of scientists and practitioners whose healing practices were actually hurting the world around them. -- Washington Post

In 2050 There Will Be 9 Billion People on Earth. How Will We Feed Them?

There are 805 million malnourished people on the planet and the global population is expected to reach nine billion by 2050. Climate change could make half the world’s current farmland unsuitable; agriculture, ironically, produces a third of the world’s greenhouse gas emissions. We are, argues Bourne, farming ourselves out of food. -- The Guardian

Democrats Compete Over Climate Change

In the past, climate change has barely rated more than a passing mention from candidates of either party. At best, it's been presented as part of a laundry list of issues facing America and the world. But now the Democratic candidates have at long last internalized it as a central part of their platforms, and that came through on Tuesday night. -- The New Republic

A Megacity Without a War: Sao Paulo's Drought

The biggest city in the Western hemisphere is facing its greatest water crisis in over 80 years — and climate change is only part of the problem. -- Time

Toyota Aims to Nearly Eliminate Gasoline Cars By 2050

Toyota, under ambitious environmental targets, is aiming to sell hardly any regular gasoline vehicles by 2050, only hybrids and fuel cells, to radically reduce emissions. -- Associated Press