There's no planetary protection officer for Earth (but there is one for Mars).
Notes on the dangerous difference between science and political science.
In an open letter to Hillary Clinton, Bill McKibben lays out exactly why she needs to put climate change at the center of her campaign -- and how she can win with it.
In an open letter to President Obama, Bill McKibben argues that the White House should take strong steps to change the carbon game -- right now.
"Kayaktivists" are taking to the water this weekend to protest Shell's decision to moor its Arctic drilling rig at Seattle's port.
He's reviving Live Earth. He's telling truths to the 1%. He sticks up for the 350 ppm goal. He bashes Keystone. Gore is a global rock star.
The largest climate march in history is happening on Sunday, right through the middle of Manhattan. Here's why the event organizers think you should pay attention.
New science shows that thanks to methane leaks, gas won't work as a "bridge fuel."
North Face's parent company refuses to sign an important safety accord for Bangladeshi garment workers.