A generator that makes electricity from wave power is being prepared for installation off the Oregon coast.
Are the movements of wildfires as predictable as the weather? And does climate change cause bigger, hotter blazes?
'Carbon Nation' bills itself as a 'climate change solutions movie, that doesn't even care if you believe in climate change.'
Caltech's solar toilet took top prize in the Reinvent the Toilet Challenge.
Mars Science Laboratory project scientist John Grotzinger describes plans for the Curiosity rover, now in Gale Crater on Mars.