Google - one of the largest consumers of power in the world - is to invest for the first time in renewable energy with the purchase of a stake in two North Dakota wind farms.
The Environmental Protection Agency report says climate change is unequivocally causing hurricanes and heat waves.
Save the whale, and it'll save you too, say Australian scientists, by recycling iron in the ocean through its poo.
The oceans are acidifying more quickly than at any time in hundreds of thousands of years, the National Research Council has reported to Congress.
Half the heat believed to have built up on Earth in recent years can't be accounted for.
Eco-friendly lighting might actually start being some use, with the launch of an LED lightbulb from GE that's claimed to produce nearly as much light as a 40-watt incandescent bulb, while lasting more than 25 times as long.
An MIT team has managed what amounts to artificial photosynthesis, using a modified virus and sunlight to split water into hydrogen and oxygen atoms.
NASA, the US Navy and Scripps Institution of Oceanography at UC San Diego have successfully tested the first robotic underwater vehicle to be powered entirely by natural ocean thermal energy.
Researchers have proposed a wind power grid linking offshore turbines along the east coast of the US as a way of smoothing out fluctuations in supply.
The UK government's first official report into the 'Climategate' scandal has concluded that the University of East Anglia did not tamper with climate data.
Greenpeace protested outside the offices of Dell yesterday in Bangalore, Amsterdam and Copenhagen, as Dell execs consider ways of cleaning up the company's products.
New NASA measurements show that the Gulf Stream has not slowed down over the past 15 years. In fact, it may even have sped up slightly.
The Asian monsoon is sending pollutants up to stratospheric heights and spreading them right across the globe, says the National Center for Atmospheric Research (NCAR).
UK researchers reckon they are on track to take carbon dioxide from the air and turn it into car fuel.
MIT and Korean researchers have developed a portable desalinator that could supply a small village using solar power.
Bill Gates (yes, really) and Toshiba are reported to be building a next-generation nuclear reactor.
A white roof reflects heat and cools a building; a dark one absorbs it. But until now there hasn't been a material that could do both.
Excuse me while I pop my organic vegetables in the oven and wipe my hands on recycled kitchen roll. I'll only be a moment. Now, I'm ready to tell you all about the reasons why wonderful people like me just love to buy eco-friendly products.
Americans are getting more and more apathetic about environmental matters, according to a Gallup poll.
Opponents of land-based wind farms have a new ally in the form of MIT. Researchers there say that, far from mitigating global warming, land-based wind turbines actually increase the temperature around them.