Mark Hertsgaard

Mark Hertsgaard is the environment correspondent for The Nation, a fellow at the New America Foundation, and a cofounder of Climate Parents. His six books include "HOT: Living Through the Next Fifty Years on Earth."

Plant matters: Is photosynthesis the best defense against climate change?

Photosynthesis, in the form of biochar, may be an important weapon in the fight against climate change.

The worst part about BP’s oil-spill cover-up: It worked

Here's what BP doesn't want you to know about the use of Corexit after the 2010 Gulf of Mexico spill.

Missing the point of the cap-and-trade defeat

We already have a popular grassroots movement demanding climate action: Beyond Coal. And D.C. environmentalists could learn a lot from it.

Cycles and cents: One city sets out to prove that bikes are good for business

Known as a car-addicted city, Long Beach, Calif., creates the nation’s first “bike-friendly” business districts, and it seems to be working.

New approach to climate deniers: Launch them into space!

Sir Richard Branson in his WhiteKnightTwo aircraft.Photo: Dave Malkoff This story has been corrected and updated since its original publication. See below for details. Here’s a new idea for how to deal with climate deniers: Blast them into space. The …

Why Seattle will stay dry when your city floods

Seattle is better prepared for a climate-changed future than most U.S. cities. You can thank Ron Sims.

What climate activists could learn from the anti-slavery movement

Climate activists who are discouraged by recent failures of worldwide leaders can find inspiration in the successes of the abolitionist movement.

Meet Generation Hot

Every child born after 6/23/88 belongs to what I call Generation Hot. They will spend the rest of their lives confronting global warming's impacts.

A deepwater drilling moratorium might be a bad idea for Louisiana

We can’t all go cold turkey.This article is part of a special issue of The Nation magazine about green energy, “Freedom From Oil.”  PORT SULPHUR, La. — Captain Pete, as everyone in town calls him, has been an oysterman nearly …