Energy stocks make gains, with shares of petroleum producers leading the move into the black on buoyant crude prices and strength in the broad equities market.

With climate change legislation rising as the biggest and most complex government program since health care reform, everyone from corporate America to Joe Six Pack will be touched by changes underway in Washington and elsewhere.

Alternative-energy providers and other leaders of the â??clean-techâ? movement have captured peopleâ??s imaginations -- and investments.

Salesforce.com Inc. shares may cool down late Friday evening following a dayside surge in the wake of the business software makerâ??s report of quarterly results that beat Wall Streetâ??s expectations.

A solar-energy industry awash in inventory has a perfect opportunity to expand its market in the U.S.