Scientists report that widely used chemicals — endocrine disruptors — are causing serious health problems in humans. We ask what the government is, and is not, doing about it.

Author Rick Bass walks us through the changing seasons of the Montana wilderness, in his new book, “The Wild Marsh.”

The passage of the House climate bill – discussed in our first hour today – has been greeted with enthusiasm in many quarters. But in some ways, the real question is whether a global framework can be established in Copenhagen in December, when countries will negotiate a new international treaty to curb greenhouse gases.

Barack Obama came to Washington promising serious action on climate change. The climate bill that passed the House last Friday is hailed as an historic first step. We’ll look at what’s in it, what it’s up against, and whether it’s enough.

We’ll go deep on one man’s tough quest to harness the wind for American power.

We’ll talk with tech visionary Shai Agassi about his plan to make the world electric-car friendly — and get the entire planet off oil.

The torture debate grows red hot. The Taliban advance in Pakistan. Craigslist under fire. Our weekly news roundtable goes behind the headlines.

Green headwinds shifting. Rep. Ed Markey, top environmental journalists and Bill McKibben take stock of the huge moves afoot on the climate-energy front.

Congressman Ed Markey (D-Mass.), a key sponsor of the historic climate/energy bill being debated this week, said today during the show that some industries would receive free carbon permits in the early years of a proposed cap-and-trade scheme.

We’re heading into the woods to look at logging today and Jack McEnany’s new book “Brush Cat.”

The 19th-century botanical journeys of the great John Muir, and how those trails and plants look today.

Will green technology really lead us out of our economic bust? We ask Silicon Valley legend John Doerr and the head of the Environmental Defense Fund, Fred Krupp.

Australian Paul Gilding calls the economic crisis “The Great Disruption” – the moment when the Earth’s environment and the economy hit the wall, together. We’ll talk with Gilding and others who say it’s time to change.

Sylvia Earle has spent a lifetime exploring ocean depths. She tells us about her new brainchild, Google Ocean, and the bottom of the deep blue sea.

The green economy in the midst of meltdown. Obama talks a green game. Can he now deliver?

Terry Tempest Williams takes us from Byzantine Italy to post-genocide Rwanda in search of “beauty in a broken world.”

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.

We look at the McCain and Obama visions on the giant issues of energy and the environment.

Renowned author and nature writer Peter Matthiessen on the 30th anniversary of his landmark travel tale, “The Snow Leopard.”

A new take on the tuna — the world’s favorite fish — and why we’re in danger of loving it to death.