Mark Hertsgaard (markhertsgaard.com), a fellow of New America Foundation and a co-founder of the group Climate Parents, is The Nation's environment correspondent. He has covered climate change for twenty years and is the author of six books, including, most recently, HOT: Living Through the Next Fifty Years on Earth.
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Awaiting a Keystone decision, environmentalists make a historic vow to engage in mass civil disobedience.
Twenty twelve was the hottest year on record—and far past time for the president to lead on climate change.
Latinos—along with other minorities and youth—are the strongest supporters of action against climate change. It’s time mainstream enviros got the message.
We can choose to ignore scientific warnings about climate change—or we can choose to act.
The presidential candidates have barely touched on environmental issues in their campaigns—and they both have plenty to answer for. Here’s what voters want to know.
But does his DNC speech signal that Obama will now champion the climate fight? Or was he just telling the Democratic base what they wanted to hear?
But does his DNC speech signal that Obama will now champion the climate fight? Or was he just telling the Democratic base what they wanted to hear?
This scorching summer could be a global warming landmark—if we demand climate action from our leaders.
After two decades, we're no closer to reducing global poverty or enhancing sustainable development. Politicians will change only when mass action forces them to.
On Dorothea Lange, Michael Harrington, Earth Day and solitary confinement


