Worried about extreme weather in connection with greenhouse gases and global warming? How about rising sea levels, earthquakes, tornadoes, and nuclear generators?
Data from NASA's Terra satellite shows that, when the climate warms, the atmosphere's more efficient at releasing energy to space than believed.
A lean, mean fighting machine - that's the old expression. But by embracing new energy technologies, the U.S. military is aiming to be a lean, mean and green fighting machine.
After 10,000 fire-free years, the Arctic tundra is again experiencing wildfires, and they're contributing significantly to the world's carbon dioxide levels.
U.S. military bases are required to keep functioning even if there’s a power failure, so typically they have backup systems that run on diesel.
In what it calls a "fundamental breakthrough in heat transfer technology for microelectronics," the U.S. Department of Energy's Sandia National Laboratories has developed the "Sandia Cooler."
In Spain, a solar power plant using molten salt to store heat recently produced power for 24 uninterrupted hours.
But could there be an even better way to retain energy captured from the sun?
Could there be the beginnings of biofuel in your desperately-in-need-of-cleaning bathtub?
Airborne particles from volcanoes and the burning of fossil fuels have reflected enough sunlight to offset about a third of the current climate warming caused by carbon dioxide over the past decade, says the NOAA.
It's enough to make a geothermal engineer cry: extensive investment has allowed the oil and minerals industry to map out a good picture of the fossil fuels lurking below Earth's surface.
The Bill & Melinda Gates Foundation is funding an effort to 'reinvent the toilet'.
Forests account for almost all of the world's land-based carbon uptake, a new report shows, helping end uncertainty about just how much carbon is being stored, and where.
The world's total wind power capacity, including both onshore and offshore projects, will triple by 2017, cleantech analyst Pike Research says in a new report.
The so-called Gulf Dead Zone is looking set to be the biggest ever this year.
Growing meat in the lab using tissue engineering techniques could cut the associated greenhouse gas emissions by 96 percent, say University of Oxford and University of Amsterdam scientists.
Nissan already has the Leaf, and now the company is moving forward on electrifying the compact commercial vehicle market.
The new technologies that change our world only seem to happen overnight. Really, they're built on constantly pushing forward scientific research.
For small islands, the incentive to end dependence on imported fossil fuels and embrace renewables is powerful.
The tides can be a great source of energy, as evidenced by recent news on the Scottish tidal turbines.
As carbon dioxide in the atmosphere increases, the soil releases ever more of two other potent greenhouse gases, new research has found.