photo: jurveston via flickr

Algae biofuels are probably the most touted future hope to replace large amounts of petroleum-based liquid fuels with a renewable source.

John Bowron's Off-Grid Cottage

Scott Huler, author of On the Grid, makes a very important point in a guest post on The Infrastructurist : Nobody is really off the grid

Ned Farquhar, Deputy Assistant Secretary, Land and Minerals Management, U.S. Dept. of the Interior, addresses the guests at Terra-Gen Power's ground breaking ceremony for Alta Wind Energy Center in Mojave, California.

Image credit: Ecotricity

The introduction of solar feed-in tariffs in the UK caused great debate—with some claiming they were a rip off and solar was pointless in such a cloudy environment.

The carbon intensity of coal is so high that CCS technology will only slightly reduce emissions, the report authors say.

In this Sierra Club video, athletes speak about their trip to the Gulf Oil Spill.

I am back home from my second trip to Louisiana since the oil spill.

Image credit: Green Power Science

From flash cooking eggs with a Fresnel lens, to building your own solar space heater with discarded campaign signs, Dan and Denise Rojas of Green Power Science are clearly at the more Macgyver end of renewable energy.

photo: Diamond Aircraft

A new and notable world's first in the realm of aviation biofuels: EADS, maker of the Airbus and lots of defense and transport aircraft, has announced the completion of the first flight powered entirely by algae-based biofuel.

photo: Kevin Dooley

Two new pieces in NRDC's Switchboard blog remind us that the debate over corn ethanol subsidies is alive and well; and illustrate, through two new reports, the benefits of ditching Federal support altogether.

photo: Dieter Weinelt via flickr

China passed the United States in terms of national carbon emissions a couple years back, and according to new data from the International Energy Agency also just passed the US in terms of total energy consumption.