Writer and naturalist Bernd Heinrich takes us deep into the heart of summer to see what plants, animals, and all of nature are up to during the longest days.

Teenage students from West Philly High are competing for the X-Prize in hybrid-car design — and challenging the pros.

We talk with Dr. Stuart Pimm, a Duke University ecologist who has travelled the world studying exactly how species go extinct – and how to bring them back from the brink.

The Senate debates a global warming bill this week — and its backers say it’s made to save the planet.
It is huge legislation that would cap CO2 emissions and — to fight climate change — would radically reshape the US economy and energy use.
No one thinks it’s going to pass this year. But Barack Obama [...]

The Irrawaddy delta in Myanmar is underwater, thousands dead, and environmentalists say it’s global warming. Monster tornadoes are plaguing the U.S. — last weekend in Missouri, Oklahoma and Georgia.
Meanwhile, far away, on the west coast of Alaska, the tiny fishing village of Kivalina is falling into the sea. And its attorneys are suing 24 oil, [...]

Warming in last decades has pushed spring forward — cherry blossom and lilac festivals across the country now celebrated days earlier than ever before. It also means birds are laying eggs earlier than before, or — sometimes — not at all.
It’s this kind of subtle mistiming that could spell disaster for our environment, jeopardizing the [...]

A thousand years ago, from the pueblos of the American southwest to what’s now Cambodia to the wheat fields of northern Europe, the world was in the midst of a great warming.
The years from around 800 to 1300 were a balmy time for some. The Vikings roamed the seas. Europe had lovely long summers.
But for [...]

Half of all electricity in America is generated from coal. As oil wanes and world energy demand grows, coal’s role is destined to only grow bigger.
The problem is, coal is dirty. Carbon dioxide emissions from coal-fired power plants are a major contributor to global warming.
Five years ago, the Bush administration announced what it called one [...]

Climate change is on the table this week at the world conference in Bali, Indonesia, and on Capitol Hill in Washington, D.C.
But as the politicians haggle over much-needed climate policy, scientists and venture capitalists, students and inventors, are looking to give us an extreme energy makeover: pursuing breakthroughs in everything from biofuels to green buildings, [...]