On January 1, California launched its cap and trade program, and it  was recently upheld in a court ruling. Time magazine Senior Editor Bryan Walsh discusses the program and why the country's most populous state is tackling climate change.

Environment and energy reporter for Time Magazine Bryan Walsh on the recent agreement among the world's leaders to work toward a climate accord that includes both developed and developing nations. 

Time magazine’s Bryan Walsh discusses farmed fish. Fish are the last wild food, but our oceans are being picked clean. His article “The End of the Line” investigates whether farming fish can take the place of catching them.

Bryan Walsh, environment and energy reporter for Time and the man behind the Ecocentric blog, to discuss recent natural gas news, from a report about its true carbon impact, T. Boone Pickens investing heavily, and fracking concerns.

On Tuesday, the Senate passed a bill that would overhaul the nation’s food safety system. On this week’s Backstory, Time staff writer Bryan Walsh explains what’s in the Food Safety and Modernization Act, how it aims to improve food safety and minimize recalls, and how it compares to food safety systems in other countries.

The Food and Drug Administration recently called for limiting the overuse of antibiotics in farm animals, over concerns that the practice is leading to the development of antibiotic-resistant bacteria. Time magazine staff writer Bryan Walsh and Maryn McKenna, author of Superbug: The Fatal Menace of MRSA, discuss the practice of putting antibiotics in animal feed, the public-health problems it poses, and the challenges the FDA faces in issuing stricter policies for reducing the practice.

Bryan Walsh, staff writer for Time Magazine, talks about the oil spill cleanup efforts in the Gulf Coast. Joining him will be Tom MacKenzie, spokesman for the  U.S. Fish and Wildlife Service, to talk about physically finding and cleaning birds covered in oil.

Video: Cleaning an Oil-Soaked Bird

As the UN Climate Change conference enters its second day in Copenhagen, Time staff writer Bryan Walsh describes what we can expect over the next two weeks, what the 15,000 delegates are talking about, and whether yesterday’s announcement that the EPA has determined that greenhouse gasses must be regulated will ...

Bryan Walsh, who wrote the cover story for the August 31st issue of Time magazine, "Getting Real About the High Price of Cheap Food," tells us about the high cost of cheap food. Somewhere in Iowa, a pig is being raised in a confined pen, packed tightly with ...

Time Magazine staff writer Bryan Walsh writes about Utah's successful experiment with a 4-day workweek, then NYS Assemblyman Mike Gianaris (D-36, Queens) talks about why he wants the 4-day workweek instituted in New York State.