A misleading ballot measure backed by utilities could hamper the growth of solar power in one of the sunniest states.
Bernie Sanders' answer is more straightforward.
Diverting more water from the lake could pose serious health and economic threats.
A startling look at the dangers facing environmentalists around the world.
Not surprisingly, Nordic countries dominate the top five.
Norwegians intend to save their climate and their figures with cross-country bike lanes.
The move could signal a change in the way the agency approaches conditional registrations.
According to a new study, the prospect of near-term sustainable aviation is a myth.
Spoiler alert: There are no questions on hand size.