This week on Sierra Club Radio: 1) Melissa Hardy from the Biofuel Oasis on how french-fry grease can fuel our cars 2) Green living tips from Avital Binshtock, Sierra magazine's Lifestyle Editor 3) Elizabeth Kolbert from The New Yorker on her recent article about mass extinctions of species.

This week on Sierra Club Radio: 1) Robert Kenner, the director of a new documentary called Food, Inc. 2) Pat Gallagher talks with us about the problems with toxic tar sands and what can be done about it 3) Mark Obmascik on his book Halfway to Heaven: My White-Knuckled - and Knuckleheaded - Quest for the Rocky Mountain High.

This week on Sierra Club Radio: 1) Andy Thornley from the San Francisco Bicycle Coalition talks about how two-wheeled travel is changing cities around the country; 2) Jesse Danzig tells us how text messaging can help save the world; 3) Linda Buzzell and Craig Chalquist, the co-editors of Ecotherapy: Healing with Nature in Mind

This week on Sierra Club Radio: In this special edition of Sierra Club Radio, we bring you a debate between Sierra Club Executive Director Carl Pope and the CEO of Chevron, Dave O'Reilly. This event was moderated by Alan Murray from the Wall Street Journal and was sponsored by Climate One and the Commonwealth Club of San Francisco. Extra: Hear the entire 60-minute debate here.

This week on Sierra Club Radio: 1) Folk icon Pete Seeger talks with us about music and social change, his 40-year fight to clean up the Hudson River, performing at President Obama's inauguration, and more 2) Green cuisine tips from Chef Annie Somerville 3) Matthew Luxon tells us about his rubbish-free year, in which he and his wife pledged to not create any trash for 12 months.

This week on Sierra Club Radio: 1) Richard Wiese talks about his new book Born to Explore: How to Be a Backyard Adventurer 2) San Francisco Supervisor Eric Mar joins Sierra Club's John Rizzo to talk about a new plan to build the largest municipal solar power project in the United States 3) Regan Ranoa on a new green online community, Climate Crossroads.

This week on Sierra Club Radio: 1) Gordon Hempton, author of One Square Inch of Silence: One Man's Search for Natural Silence in a Noisy World 2) Daniel Wallach talks about the green rebuilding of the area devastated by tornadoes in Greensboro, Kansas 3) Green cuisine tips from chef Annie Somerville.

This week on Sierra Club Radio: 1) Seth Goldman, CEO and Founder of Honest Tea, the organic fair-trade iced tea company 2) Larry Fahn, Executive Director of As You Sow, on how shareholder campaigns can hold corporations accountable 3) Rashani Dantis from Detroiters Working for Environmental Justice talks about green job training programs 4) Green living tips from Avital Binshtock at Sierra Magazine.

This week on Sierra Club Radio: 1) Renowned primatologist Birute Galdikas, talks about four decades of studying orangutans in Borneo 2) Filmmaker Joe Burlinger on his new documentary, Crude, about the lawsuit against Chevron for their contamination of the Ecuadorian Amazon.

This week on Sierra Club Radio: Our 125th show! 1) Hockey legend and former N.Y. Ranger Mike Richter on his new career as an environmentalist; 2) Nick Ellis from the search firm Bright Green Talent on the emerging green job market; 3) Rebecca Hoffman on green gifts for Mother's Day; 4) Chef Annie Somerville gives organic cuisine tips for spring.

This week on Sierra Club Radio: 1) Maria Gunnoe and Yuyun Ismawati, two of the winners of this year's Goldman Prize, the premier international award for environmental activism 2) Filmmaker Curt Ellis on his new documentary, The Greening of Southie, about Boston's first residential green building.

This week on Sierra Club Radio: 1) Scott Hamilton Kennedy, director of the Academy-Award nominated documentary The Garden 2) Phil Radford, the new Executive Director of Greenpeace USA 3) Annelli Rufus and Kristan Lawson, authors of a new book called The Scavengers' Manifesto 4) Debbie Sease gives tips for green gardening.

This week on Sierra Club Radio: 1) In honor of National Poetry Month, we bring back our interview with Pulitzer-prize winning poet Robert Hass 2) Jennifer Schwab talks about a new website called Sierra Club Green Home 3) Green cuisine tips from Annie Somerville, Executive Chef of Greens Restaurant.

This week on Sierra Club Radio: 1) Michael O'Gorman of the Farmer-Veteran Coalition 2) Lindsay Allen from Greenpeace on how your tissues may be made from endangered forests, and what you can do about it 3) Kirsten James from Heal the Bay tells us about a new bill to reduce disposable plastic bags 4) Myke Bybee from the Sierra Club's Washington, D.C. office tells us about a new wilderness bill that will protect over 2 million acres of wilderness across the country.

This week on Sierra Club Radio: 1) Actress Ashley Judd on her work to stop mountaintop removal coal mining 2) Photographer James Balog on his project to show the melting of our glaciers 3) Chef Annie Somerville gives green cuisine tips for spring.

This week on Sierra Club Radio: 1) Rachel Louise Snyder, author of Fugitive Denim: A Moving Story of People and Pants in the Borderless World of Global Trade 2) This week marks the 20th anniversary of the Exxon Valdez oil spill, so we bring back an earlier interview with Ricki Ott, author of Not One Drop: Betrayal and Courage in the Wake of the Exxon Valdez Oil Spill 3) Andrew Levi from Skipstone Ranch talks about organic vineyards and greening the wine industry.

This week on Sierra Club Radio: 1) Cooking guru Mark Bittman on his new book Food Matters: A Guide to Conscious Eating 2) Dickson Despommier from Columbia University talks about vertical farming 3) Sierra Magazine's Avital Binshtock gives tips for green living 4) Green cuisine ideas from Annie Somerville, Executive Chef at Greens Restaurant in San Francisco.

This week on Sierra Club Radio: 1) Nicolette Hahn Niman, author of Righteous Porkchop: Finding a Life and Food Beyond Factory Farms 2) Green lifestyle tips from Avital Binshtock, editor at Sierra Magazine 3) Sharon Freeman, editor of a new book called Blacks Living Green 4) Shankar Vedantam, reporter for the Washington Post, on his recent article on eco-migration.

This week on Sierra Club Radio: 1) Claire Hope Cummings, author of Uncertain Peril: Genetic Engineering and the Future of Seeds 2) Green tips from Robyn Griggs Lawrence, editor-in-chief of Natural Home magazine 3) Ed Humes, author of Eco Barons: The Dreamers, Schemers, and Millionaires Who Are Saving Our Planet.

This week on Sierra Club Radio: 1) Jonathan Rosen, author of the bestseller The Life of the Skies: Birding at the End of Nature 2) Green living tips from Avital Binshtock, Sierra Magazine's lifestyle editor 3) David Willett gives us the update on the Economic Recovery Act and what it means for building the green economy 4) Inventor Jock Brandis on how a simple peanut-sheller invention is changing sustainable agriculture in the developing world.

This week on Sierra Club Radio: 1) David Wilcove, the author of No Way Home: The Decline of the World's Great Animal Migrations 2) Mary Anne Hitt from the Sierra Club's coal campaign talks about a bad week for coal 3) Avital Binshtock, green lifestyle editor for Sierra Magazine, gives tips for saving paper 4) Darlene Wolnick from Market Umbrella talks about a new study that shows the positive impacts of farmers' markets.

This week on Sierra Club Radio: 1) Arlene Blum, Director of the Green Science Policy Institute, on the dangers of toxic chemicals in household furniture - and what you can do about it 2) Filmmakers Howard and Michelle Hall on the making of their new IMAX 3D film Under the Sea 3) Dominique Hazzard from the Sierra Student Coalition on Power Shift 2009, their upcoming student conference in Washington, D.C. 4) Anthony Marek from Transfair USA talks with us about fair-trade labeling and how it helps small farmers.

This week on Sierra Club Radio: 1) Dr. Jane Hightower, author of Diagnosis: Mercury 2) Donald Kennedy, President Emeritus of Stanford University and former editor-in-chief of Science magazine 3) Leila Salazar-Lopez of the Rainforest Action Network.

This week on Sierra Club Radio: 1) Ann Vileisis, author of Kitchen Literacy: How We Lost Knowlege of Where Food Comes From, and Why We Need to Get it Back 2) Political commentary from Carl Pope 3) Sven Thessen from Better Place on how we can make electric vehicle infrastructure a reality.

This week on Sierra Club Radio: 1) Kate Harrison, author of The Green Bride Guide: How to Create an Earth-Friendly Wedding on Any Budget 2) Margrete Strand on the upcoming Good Jobs/Green Jobs conference 3) Political commentary from Carl Pope 4) Michael Grunwald, senior correspondent for Time magazine, on his recent cover story about energy efficiency.

This week on Sierra Club Radio: 1) Irene Pepperberg, author of Alex & Me: How a Scientist and a Parrot Uncovered a Hidden World of Animal Intelligence -- and Formed a Deep Bond in the Process 2) Commentary from Sierra Club Executive Director Carl Pope 3) Lyndsay Moseley on the enormous toxic coal-ash spill in Tennessee 4) Mary Anne Hitt on the Sierra Club's Clean Slate campaign.

This week on Sierra Club Radio: A 'best of' show, featuring: 1) Arlene Blum, the first woman to climb Mt. Everest 2) The Sierra Club's Mr. Green opines on CFLs 3) Mark Winne on the future of farmers' markets and local food 4) Green cuisine winter recipes from chef Annie Sommerville.

This week on Sierra Club Radio: 1) Steven Rinella on his new book, American Buffalo: In Search of a Lost Icon 2) Xavier Helgesen, co-founder of Better World Books, which has kept millions of books out of landfills 3) Carl Pope on President-elect Obama's picks for key environmental positions.

This week on Sierra Club Radio: 1) Stacey O'Brien, biologist and author of Wesley the Owl: The Remarkable Love Story of an Owl and his Girl 2) Zahava Stroud, president of iHollywood Forum, talks about how Hollywood is going green 3) Carl Pope, Sierra Club's Executive Director, on the auto bailout.

This week on Sierra Club Radio: 1) Chuck Leavell, keyboardist for the Rolling Stones, on his new environmental project, the Mother Nature Network 2) Ricki Ott, author of a new book called Not One Drop: Betrayal and Courage in the Wake of the Exxon-Valdez Oil Spill 3) Nicole Rowell Ryan, daughter of the late renowned nature photographer Galen Rowell, on her father's life and work.

This week on Sierra Club Radio: 1) Legendary singer/songwriter Joan Baez talks with us about 50 years of music and activism 2) Lisa Ling, special correspondent for CNN, on the stories she reports on for their upcoming Planet in Peril show 3) Dr. Alan Greene tells us about his effort to eat only 100 percent organic food for three years.

This week on Sierra Club Radio: 1) Climber George Whitmore, on the fiftieth anniversary of the first ascent of Yosemite's El Capitan 2) Katherine Mieskowski from Salon.com on the recent increase in public transit ridership 3) RJ Ruppenthal, author of a new book called Fresh Food from Small Spaces: The Square Inch Gardener's Guide to Year-Round Growing, Fermenting, and Sprouting.

This week on Sierra Club Radio: 1) Lyndsay Moseley, editor of a new book called Holy Ground: An Anthology of Voices on Caring for Creation 2) Carl Pope on what the recent elections mean for environmental progress 3) Tips for a green Thanksgiving 4) Jeremy Madsen from Greenbelt Alliance on smart growth vs. urban sprawl.

This week on Sierra Club Radio: A Best-Of show, where we revisit some of our best segments from the past, including: 1) Carole King, Grammy award-winning singer/songwriter, on her efforts to help protect wilderness in Idaho 2) Arctic explorer and adventurer Will Steger shares his firsthand account of global warming's effects at the North Pole 3) Green living tips from Jennifer Hattam 4) Becky Gillette reports from the Gulf Coast about the fight to clean up the toxic FEMA trailers for Katrina families.

This week on Sierra Club Radio: A Best-Of show, where we revisit some of our best segments from the past, including: 1) The Speaker of the House, Nancy Pelosi, on new energy legislation and greening the Capitol;  2) two winners of this year's Goldman Environmental Award; 3) Renée Loux, host of It's Easy Being Green.

This week on Sierra Club Radio: A Best-of show, where we revisit some of our best segments from the past, including: 1) Lois Gibbs, whose activism put Love Canal in the spotlight 2) Arianna Huffington, noted political commentator and progressive web mogul.

This week on Sierra Club Radio: 1) Greg Nickels, mayor of Seattle, on the successes of the U.S. Mayors Climate Protection Agreement 2) Adventurer Lewis Gordon Pugh talks with us about his recent kayaking trip in the Arctic to show the dramatic loss of sea ice 3) Carrie Liaskos from BeEcoChic on the greening of the fashion industry.

This week on Sierra Club Radio: 1) The Governor of Utah, Jon Huntsman, on environmental initiatives in Utah 2) Martin LeBlanc, the Sierra Club's National Youth Director, on new legislation to 'Leave No Child Inside' 3) Dan Reichert, Director of Climate Change and Energy Initiatives at Google.org, on Google's new clean energy partnership with General Electric.

This week on Sierra Club Radio: 1) Singer/Songwriter Dar Williams on her efforts to green her lifestyle; 2) Pauli Ojea from Breast Cancer Action on why this year's "Think Before You Pink" campaign is targeting Yoplait yogurt; 3) John Bela, the landscape architect who created the victory garden in front of San Francisco's City Hall.

This week on Sierra Club Radio: 1) United States Senator Maria Cantwell talks with us about  the fight for renewable energy and taking on oil speculators; 2) John Bela from the ReBar arts collective on "Park(ing) Day" -- an event that turns parking spaces into public parks; 3) Green living tips from Josie Garthwaite; 4) Emily Green on a recent victory to protect the Great Lakes.

This week on Sierra Club Radio: 1) The Governor of Wisconsin, Jim Doyle, on Wisconsin's efforts to curb global warming 2) Josie Garthwaite gives tips for green living 3) Daniel Sherwood, President of 3Prong Power, answers our questions about plug-in hybrid cars.

This week on Sierra Club Radio: 1) Stuart Townsend, director of a new movie called The Battle in Seattle 2) John Gonsalves, founder of Homes For Our Troops, about their efforts to build green homes for injured veterans 3) Dara O'Rourke from GoodGuide.com, a new online resource that shows the health and environmental safety of thousands of household products 4) Athan Manuel gives an update on this week's energy legislation in D.C.

This week on Sierra Club Radio: 1) Kristi Chester Vance from Forest Ethics on the dirty oil coming from the Tar Sands in Alberta, Canada 2) Josie Garthwaite gives green living tips about compact fluorescents 3) Tara Lohan, editor of a new book called Water Consciousness: How We All Have to Change to Protect Our Most Critical Resource.

This week on Sierra Club Radio: 1) Michael Brune, Executive Director of Rainforest Action Network, on his new book, Coming Clean: Breaking America's Addiction to Oil and Coal 2) Josie Garthwaite gives green living tips about conserving water at home 3) Gregory Dicum, author of The Coffee Book: Anatomy of an Industry from Crop to the Last Drop, talks with us about sustainable and organic coffee.

This week on Sierra Club Radio: 1) Lisa Pomerance from RecycleBank talks about how incentive programs are changing recycling; 2) Tips for greening your Labor Day BBQ from Sierra magazine's answer guy, Mr. Green; 3) David Feinberg from vbs.tv on their new show, Toxic Linfen; 4)Sierra Club organizer Aloma Dew on the upcoming Healthy Foods, Local Farms conference in Kentucky; 5) Josie Garthwaite shares advice for saving gas during the holiday weekend; 6)Green cuisine tips from Annie Somerville, Executive Chef of Greens Restaurant.

This week on Sierra Club Radio: 1) Richard Conlin, President of Seattle's City Council, on Seattle's new initiative to charge for disposable bags in supermarkets 2) Josie Garthwaite from Sierra magazine talks about their second annual "Cool Schools" issue 3) Mary Logan Barmeyer from National Geographic's Green Guide, on greening her summer roadtrip 4) Green cuisine tips from Annie Somerville, Executive Chef of Greens Restaurant.

This week on Sierra Club Radio: 1) The Mayor of Salt Lake City, Ralph Becker, talks about the city's new green initiatives; 2) Logan Green, co-founder of Zimride.org, a new carpool-matching website; 3) Louise Gava from St. Lawrence University gives tips for a green back-to-school shopping list; 4) Michael Degnan on the Bush administration's attempt to gut the Endangered Species Act.

This week on Sierra Club Radio: 1) Will Craven from Forest Ethics on what junk mail has to do with global warming; 2) Wendy Abrams, founder of an art exhibit called Cool Globes; 3) Michael Watts, editor of Curse of the Black Gold: Fifty Years of Oil in the Niger Delta; 4) Political commentary from Sierra Club Executive Director Carl Pope.

This week on Sierra Club Radio: 1)Gary Nabhan talks about endangered foods and his new book, Renewing America's Food Traditions; 2) Lyndsay Moseley on the Sierra Club's first-ever report on environmental engagement in communities of faith; 3) Michael d'Estries, one of the founders of ecorazzi.com, the site for green celebrity news; 4) Rusty Gates on a victory for anglers in Michigan; 5) Green cuisine tips from Annie Somerville, Executive Chef of Greens Restaurant.

This week on Sierra Club Radio: 1) Legendary oilman T. Boone Pickens on why he thinks we should be investing in renewable energy 2) Brittany McKee on a project that is helping send kids from military families to outdoor summer camps 3) Greg Karras from Communities for a Better Environment on Chevron's bid to process dirtier crude oil in Richmond 4) Hilary Kaplan on an upcoming kayak trip on the Los Angeles River to make a statement about clean water 5) Political commentary from Sierra Club Executive Director Carl Pope.