Leaked drafts of the forthcoming fifth IPCC climate report reveal that scientists are more sure than ever before that we're screwing up the climate.
Toyota sells a hybrid minivan in Japan, but it has no plans to sell one in the U.S., and neither do any other automakers.
A new report sheds light on the massive energy footprint of the global digital economy.
Ford is making "goodwill" payments to owners of C-Max hybrids to atone for inflated mileage claims. Now EPA says it will revamp its rules on how mileage is measured.
The move comes three decades after Jimmy Carter put solar panels on the White House roof, and three years after the Obama administration promised to do the same.
Scientists have been puzzled by a drop in worldwide sea levels in 2011. New research suggests that deluges in Australia were largely responsible.
State lawmakers concerned about radioactive leaks want the Vermont Yankee nuclear plant shut down, but a federal court ruled that's beyond their power.
Should an energy company be allowed to suck millions of gallons a day from the Ohio River?
Boise, Idaho-based WinCo could teach Walmart a thing or two. And the regional grocery-store chain is expanding.