March 16, 2010

• EarthTalk: Will Hybrid Plug-ins Lead to Greater Reliance on Coal?

March 1, 2010

• EarthTalk: Plug-in Hybrids and Their Impact on the Electricity Grid

December 31, 2009

• The Copenhagen Wheel – Hybrid Power Bike System Unveiled for COP15

November 2, 2009

• EarthTalk: Affordable Eco-Friendly Cars; The Consequences of Dying Plankton on the World's Oceans

July 1, 2009

• EPA Approves California Waiver to Regulate Tailpipe Greenhouse Gas Emissions

June 1, 2009

• EarthTalk: Charging Plug-in Hybrids Away From Home and Uranium Mining Near the Grand Canyon

May 20, 2009

• Obama Introduces New Vehicle Mileage and Emissions Standards

April 22, 2009

• Earth Day Special: Of Solar Trees & PHEVs

April 21, 2009

• Green Stimulus: Navistar Gets DoE Funds to Improve PHEV School Buses

April 20, 2009

• OriginOil Announces Breakthrough Algal Oil Extraction Process
• EarthTalk: What Carbon Neutral Really Means and Getting More High Mileage Diesel Cars on American Roads

March 26, 2009

• Algae Biofuels – The Hype, the Hope, the Promise

March 23, 2009

• Raser Readies 100-MPG Electric SUV for Road Test

March 9, 2009

• EarthTalk: The Costs and Benefits of Plug-in Hybrids and Facts on Aerial Wolf Hunting

February 2, 2009

• EarthTalk: Green Rental Car Companies and Seeing the Forest for the Trees in Finding Recycled Paper Products

January 26, 2009

• News Update: Obama Directs EPA to Reconsider Bush Era Denial of Auto Emissions Waiver

January 5, 2009

• Earthtalk: Rising Seas and Buying a New Car Vs. Keeping a Well-Maintained Used Car

November 25, 2008

• Of Speculative Bubbles, the Crisis in Finance, Corn & Ethanol

November 18, 2008

• Whither US Autos & Industry: Where's the accountability?

November 16, 2008

• Earth Talk: Eco Villages and Which Has the Biggest Environmental Impact: Flying vs. Driving