Google's invested in a project to build a 350-mile power transmission backbone along the US East Coast.
A new study from the National Center for Atmospheric Research and other bodies aims to quantify the effects of population growth on carbon dioxide emissions, and concludes that it could make a big difference.
A new discovery at Rutgers University looks likely to lead to the creation of efficient and inexpensive solar cells made of plastic.
It's completely counter-intuitive, but it now seems that increased solar activity actually leads to cooling on Earth.
The Copenhagen Accord is so full of holes that even if countries stick to their targets there could still be a 4.2-degree rise in temperature by 2100, says a new report.
A North Carolina State University-led team has created 'artificial leaves – water-gel-based solar devices which can act like solar cells to generate electricity.
It's not as obvious as the pollution that's caused by industrialization, but smoke and toxins from cooking fires are killing millions of women worldwide.
The ozone layer is regenerating, and could be back up to strength by the middle of the century, according to a UN report.
The Edison2 team clearly put more effort into designing its fuel-efficient car than it did coming up with the name, and it's paid off: the Very Light Car No 98 has earned its designers $5 million from the X Foundation.
One disadvantage of solar cells is that they take up a lot of room - and not every building has enough space.
It's so obvious, it's a wonder nobody thought of it before: releasing vast quantities of sulphuric acid into the atmosphere to save - yes, save - the planet.
The Greenland and West Antarctic ice caps are melting at half the expected rate, according to a joint US-Dutch team.
MIT rsearchers have created tiny solar cells that can repair themselves after damage from the sunlight they're designed to process.
A Californian company has filed a patent for a technology which it says allows CO2 and natural gas to be converted directly to gasoline.
MIT has developed an autonomous floating robot that it says can absorb as much as 20 times its own weight in oil.
A long-awaited report into the Intergovernmetal Panel on Climate Change has concluded that the panel, which manages research into climate change, needs changes at the top.
Brazilian scientists believe they have found a way of tapping electricity direct from the air - and preventing lightning strikes at the same time.
Tackling sea level rises though geoengineering won't work, and would impose enormous risks on future generations, according to an international research team.
A Canadian company will next month launch what would surely be a hippy's perfect car - one built largely from cannabis.
Researchers have developed a system allowing large-scale solar power installations to keep themselves clean, based on technology developed for missions to Mars.