Douglas Brinkley's biography of Teddy Roosevelt proves we still have a lot to learn from the conservation giant.

Thomas Friedman's climate-change manifesto is bound to be a bestseller. And that's a good thing.

Breaking down the commercial formulas that make fall's new adventure–TV shows seem very familiar

THE OPEN ROAD: The Global Journey of the Fourteenth Dalai Lama,by Pico Iyer (KNOPF, $24) Veteran travel writer Pico Iyer has been hanging out with the Dalai Lama for more than 30 years, visiting the Tibetan Buddhist leader’s home-in-exile, in Dharmsala, India, and following him…

You don't need to have billions or hold office to make a big difference. Just check out how this year's nine eco-all-stars—from a Chilean dam buster to a snowboarder who's seen the light—are changing the world.

In A Contract with the Earth, Newt Gingrich aims to steal environmentalism back from the Democrats—and let free markets reign.

H2O is what connects us—it’s the alpha liquid that supports natural wonderlands and lets us live, play, and explore. You’d think we’d be taking better care of this critical resource, and yet waste and pollution are rampant and more than 1.1 billion people lack access to clean water. The good…

Cinematographer Howard Hall captures coral reefs, swarming sharks, and life below 300 feet

Windbags on a mission! Fighting fires with new super-soaker blimps!