On the 50th anniversary of Silent Spring’s publication, a best-selling historian shows the extent to which John Kennedy and his administration defended Rachel Carson’s controversial work against the chemical industry’s onslaught.

America may be coming to grips with the dark side of our cheapest, most abundant energy source, but a plan to unload it on Asia threatens to poison our planet.

For centuries the study of bird migration has been riddled with mystery and unanswered questions: Where do birds go in winter? How far do they fly? Can they navigate a hurricane? Scientists are tapping new technologies to find the answers, and transforming everything we know—or think we know—about birds.

There are only 245 vaquita left in the wild. To save the rare porpoises, the Mexican government has launched an innovative project that pays fishermen to hang up their nets.

The news for Lake Okeechobee, the Everglades’ lungs and kidneys, is mixed at best. But at last we understand what’s at stake and how to heal the lake.

When most Americans think of the wildlife on Alaska’s North Slope, they think of the beleaguered, 19-million-acre Arctic National Wildlife Refuge. But if they look to the west, they will see another vast wilderness—also teeming with birds, bears, and caribou. Best of all, they can help save it.

While environmental groups often work toward preserving biodiversity in ecosystems, many are now grappling with trying to figure out how to diversify their own ranks.

Our southwest’s deserts offer promise for solar power development. They also boast incredible biodiversity. New initiatives are looking to tap into the vast energy potential without threatening the wildlife and plants that depend on this fragile landscape.

Welcome to the new era of “megafires,” which rage with such intensity that no human force can put them out. Their main causes, climate change and fire suppression, are fueling a heated debate about how to stop them.

Right here in North America could lie the answer to our energy needs. But at what cost? Mining the tar sands of Alberta threatens to strip the world's largest intact forest of its ability to hold carbon and to wipe out the breeding grounds for millions of birds.