Intentionally engineering Earth’s atmosphere to offset rising temperatures could be far more doable than you imagine, says David Keith. But is it a good idea?
Small reactors have some benefits, but they won’t make nuclear as cheap as natural gas.
If you believe Tesla, affordable, long-range electric cars could be here sooner than many think.
Falling costs are making fuel-cell vehicles look like a plausible alternative to conventional cars.
While technically feasible, Musk’s hyperloop will likely be expensive.
A new study suggests that U.S. laws should go further to limit gun ownership and improve enforcement.
BrightSource’s 370-megawatt facility near Las Vegas is taking shape, but the future of solar thermal is much more fuzzy.
Alberta will serve as a test bed for large-scale carbon capture and sequestration.
SolarCity’s massive new manufacturing plant in Buffalo, New York, reflects a booming demand for solar power. Is it sustainable?