Solar Impulse is a sun-powered airplane with the wingspan of a 747, the weight of a small car, and enough battery storage to fly for up to 36 hours at a time.
On the Frankenstrasse, in the German city of Hamburg, stands a new apartment building whose walls are covered with green slime.
Indonesian doctors show that stethoscopes might be the best defense against chainsaws
When Victoria McKenzie-McHarg traveled from her native Australia to the United States to learn more about anti-coal activism, she found a resource worth importing: the Sierra Club's grassroots organizing model.
Want a green job? Bypass the ivory tower. A community college may be better at getting you employed.
The Solar Decathlon lasts just 10 days but it shapes decades-long careers.
Some use the water, sun, and wind for adventure. Others turn these forces into electricity. A small elite do both.