Riding from the airport to Iceland's capital, Reykjavik, gives one the sensation of having landed on the moon. Black lava rocks cover the mostly barren landscape, which is articulated by craters, hills and mountains. Other parts of the island are covered by a thin layer of green moss. American astronauts traveled here in the 1960s to practice walking the lunar surface, defining rock types and taking specimens.

I, too, have traveled here on a journey of sorts to a new world, a world that is powered not by oil, coal and other polluting fossil fuels, but one that relies primarily on renewable resources for energy and on hydrogen as an energy carrier, producing electricity with only water and heat as byproducts.

My quest has brought me to the cluttered office of Bragi

Four years ago, the Shaklee Corporation began a ground-breaking partnership with the nonprofit Climate Neutral Network by developing a unique portfolio of carbon-offset projects that delivered both environmental and socioeconomic benefits in the communities they served. By Kelley Kreitz

No one ever said it would be easy to implement a multi-partner recycling operation. But it's worth it. By Dyan M. Neary.

The roof system may be the first line of defense in beating back high energy costs. By David Kozlowski.

The renewable energy tax credits received a new lease on life when the breaks were added to the $700 billion bailout plan passed by the House Friday. President George Bush signed the legislation about an hour later. UPDATED 2:00 p.m.

The voluntary carbon market grew about 66 percent between 2004 and 2007 but offset buyers find themselves with "limited assurance of credibility," according to the U.S. Government Accountability Office.

North America's first auction of greenhouse gas emissions allowances last week raised nearly $38.6 million that will go toward energy efficiency and renewable energy projects in six Northeastern and Mid-Atlantic states.