Each year, ten million computers land in the toxic graves that are landfills. Nestled among other CPUs and laptops and monitors, their lifeblood oozes out. A guest post from Simran Sethi and Sarah Smarsh.

"The machine is different from all the other projects that aim to derive energy out of waves. It can be used in a calm sea as the Mediterranean, even if its efficiency in the ocean could be five times bigger" Grassi said.

My work went solar and I was so excited, I decided to blog it. Check out the lesser-known thin-film solar panel.

We already know that concentrated solar power (CSP) is shaking things up in the solar industry. A subset within the industry is turning up the heat. "Extreme" Concentrated solar magnifies intense sunlight onto a solar cell...

As if it wasn't bad enough that particulate matter from diesel exhaust causes a range of respiratory problems including 15,000 premature deaths each year, new research shows that even short-term exposure to diesel exhaust can affect brain function.

The historic city of Philadelphia hasn't been known for its skyline in a long time. Now, some developers want to change that with a new proposal -- which will boast energy and water efficiency.

After years of development, the Washington-based company InnovaTek is testing a hand-sized microreactor that can convert virtually any liquid fuel (like biodiesel) into hydrogen, producing a portable hydrogen stream for use in adjoining fuel-cells.

Tesla Motors began limited production of their all-electric, zero-emissions sportscar, the Tesla Roadster. It's a car that can go from 0-60 in 5.7 seconds without using a drop of gas, and promises to be the first of a wave of new plug-in electric vehicles

Teams from around the world are gearing up for the Automotive X Prize, a competition that will award part of $10 million to the team that builds the cleanest production-ready 100 MPGe (mile per gallon equivalent) vehicle.