A few carbon capture and sequestration projects are under way, but economics and politics are holding the technology back.
As the world’s biggest exporter of corn diverts more and more of its crop to make fuel, it’s sending less to the global marketplace.
A new cosmology successfully explains the accelerating expansion of the universe without dark energy; but only if the universe has no beginning and no end.
The world’s best-known consciousness researcher says machines could one day become self-aware.
The history of electric cars is long and full of false starts. But it looks as if the latest wave won’t be turned back.
How will a mass influx of robots affect human employment?
A Columbia scientist and his startup think they have a plan to save the world. Now they have to convince the rest of us.
An op-ed rekindled the debate about the environmental benefits of natural gas. Here’s a better way to think about the issue.
Seeing Big Brother in the grid, some citizens are mounting opposition to wireless electricity meters.