The $2.2 billion Ivanpah solar power plant can now generate electricity. But was it worth the money?
On a closed track against a powerful head/tailwind, what racing strategy should a cyclist adopt? One engineer has derived a simple rule-of-thumb that gives the answer
The world needs nuclear power to reduce the emissions causing climate change, but that depends partly on finding a place to store decades’ worth of accumulated waste
Even with a terrible recession and a natural-gas bonanza, the U.S. isn’t cutting emissions fast enough.
Computer scientists have simulated from first principles the way batteries wear out as they are charged and discharged for the first time
The uncertainties about climate change discussed in an upcoming report highlight the need for ways to adapt quickly.
By forcing changes in how gas power plants operate, greenhouse regulations could actually make it more difficult for utilities to use renewables.
Understanding the temperature of the Arctic ocean and the way icebergs form and melt is hugely important for climate models. A new laser tracking technology should help
Astronomers have found 12 near-Earth asteroids that could be captured with today's rocket technology
What BMW’s decision to incorporate a gas engine into its new, electric i3 says about batteries.