The ancient Romans of Pompeii were already parboiled when the lava arrived, according to a new investigation with scary implications for modern-day Naples.
The dust on high peaks, blown in from Southwestern pastures, farms, mining roads and off-road vehicle parks, is hastening snowmelt and reducing the runoff into the Colorado River, scientists say.
How exactly is the U.S. federal government leading by example on reducing greenhouse gas emissions? A collection of reports lists a zillion specific items, from double-sided printing to thousands of solar panels.
A U.S. government project combining two well-known technologies — swamp coolers and water-absorbing compounds — generates an amazingly efficient air conditioner.