The best of two worlds: Solar hydrogen production breakthrough

Using a simple solar cell and a photo anode made of a metal oxide, HZB and TU Delft scientists have successfully stored nearly five percent of solar energy chemically in the form of hydrogen. This is a major feat as the ...

Desalinating seawater with minimal energy use

At a pilot facility in Singapore, Siemens has cut the energy needed to desalinate seawater by more than 50 percent. The plant processes 50 cubic meters of water per day, consuming only 1.5 kilowatt-hours of electricity per ...

From Sydney to New York, landmarks go dark for Earth Hour

From Sydney's Opera House to New York's Empire State Building and Paris's Eiffel tower, landmarks worldwide dimmed their lights Saturday for the 10th edition of the Earth Hour campaign against climate change.

Turning Arizona's dry heat into a comfy chill

An innovative solar-thermal heating and cooling system installed on top of the UA's Student Recreation Center is expected to harvest almost 200 million kilowatt hours of solar energy per year – enough to power more than ...

Asia turns off lights for Earth Hour

Australia's Sydney Harbour Bridge and Opera House were plunged into darkness on Saturday for the annual Earth Hour campaign, leading a global effort to raise awareness about climate change.

Space the latest frontier for Earth Hour

Millions of people are expected to switch off their lights for Earth Hour Saturday in a global effort to raise awareness about climate change that will even be monitored from space.

page 1 from 9