Americans are driving tens of billions of miles less these days, and experts don't expect that to change  unless gasoline prices drop much below $3.

Oil production has begun falling at all of the major Western oil companies, and they are finding it harder than ever to find new prospects even though they are awash in profits and eager to expand.

The surging popularity of alternative energy helped Denmark’s wind-turbine maker Vestas to post a 27 percent rise in first-half profits, and CEO Ditlev Engel told CNBC Europe he remains confident that looming energy shortages will make the wind industry more attractive to investors over the long term.

When Honora Wolfe and her husband moved to the outskirts of Boulder, Colorado, she wanted an environmentally friendly way to commute to her job as a bookshop owner in the city.

Ford Motor said Thursday its redesigned Ka city car would debut in the upcoming Bond film "Quantum of Solace," scheduled for release in North America on Nov. 7.

Big retailers are not only putting solar energy systems are the roofs of their stores, they're getting in the residential solar panel business. But don’t expect an install-it-yourself kit any time soon.

We're facing increased inputs, but it's a good time to be a farmer, said Larkin Martin, chairman of the board for the Federal Reserve Bank of Atlanta, and also a seven generation farmer.

Fuel, commodity and material rates are “expected to rise” in this extraordinarily challenging time for the electric industry, said David Ratcliffe, chairman and CEO of Southern Company.

The rapid slide in commodities prices is fueling the runup in stocks. But market pros think the switch might be short-lived.

There is a new breed of funds moving into the clean technology sector – specialized hedge funds that have at least $750 million under management.  And they bring a new play – long and short – on the notoriously volatile sector.

Retailers are typically obsessed with what to put under their roofs, not on them. Yet the nation’s biggest store chains are coming to see their immense, flat roofs as an untapped resource.

Oil tycoon T. Boone Pickens is building a million-person "army" that he says will pressure the nation's leaders to adopt a more responsible energy policy.

A small but growing number of American homeowners are installing small wind turbines to provide their own electricity. If you're interested you may soon be able to buy your turbine from the famous French architect Philippe Starck.

A plan proposed by oilman Boone Pickens to use natural gas to power US automobiles is generating debate. Some doubt the feasibility of the plan, The New York Times reports.

Natural gas has many virutes, but recent proposals to encourage demand could boost prices for consumers and petroleum-dependent industries.