Photo: New Flyer What’s the Difference Between CNG and Diesel? The Board of the New York Metropolitan Transit Authority (the “MTA”) has awarded New Flyer of America a contract for up to 475 buses. The contract is for 135 40-foot compressed... 

photo: Pete Birkinshaw via flickr Now that we’ve got some distance from the ‘biofuels are going to save us, oh wait they’re going to kill everything else’ hysteria of a couple years back and some sane skepticism has emerged, how... 

Advocates say harnessing the Gulf Stream could create one-third of Florida’s energy needs. Image: NASA While most marine power projects rely on turbines or other power-generating devices in relatively shallow water, researchers from Embry-Riddle... 

Image credit: OedipuSphinx (Creative Commons) A few years ago I got into a heated debate about Al Gore’s Inconvenient Truth with a green-minded friend of mine. My hippy friend couldn’t stand the movie—not because of anything it said,... 

Image via Earthtechling When we see personal chargers, they’re almost always based on absorbing energy from the sun . Once in a great while, we also hear of new personal wind-powered chargers . But we almost never hear about water-powered personal... 

Photo: PG&E Currently the Largest-Scale Form of Grid Storage Available Last week, California’s PG&E filed a request with regulators to study the feasibility of building a new “pumped hydro storage” facility in the Mokelumne... 

All Images Courtesy of Gijsbert Koren We’ve seen people do a lot with windmills- from making them at home to wearing them . Now Dutch designer Gijsbert Koren has taken a step to make this age-old green technology even greener: replacing the windmill’s... 

Image credit: Particle Men From the 100mph “wind-powered” Nemesis through the record-breaking Tesla to the more affordable Nissan Leaf , electric cars are a popular feature here on TreeHugger. So I’m not sure how we missed this one... 

Low Enough to Keep Competition Away The Atlantic has a good piece about OPEC, everybody’s least-favorite cartel. It shows pretty clearly why OPEC is probably the most effective enemy of renewable energy. The way they do it is by going against their... 

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