Global warming

During the past month, AIG stock fell nearly 10% drop after an announcement that the government would sell some of its stake in the insurance giant. The Treasury's ownership in the company has declined from 92% to 77%, but the prospect of its future sell-offs are holding the stock down.

SunPower boasts of being able to manufacture the most efficient large-scale solar modules in the industry, and shipments of its residential and commercial components have been growing rapidly. Trefis predicts they'll keep growing, especially if federal policy shifts further in favor of solar.

The Easy-Bake Oven is falling victim to the fight against global warming. The incandescent light bulbs that heat the toy ovens are being phased out in 2012 in favor of energy-efficient compact fluorescents. But precisely because they are energy efficient, they don't get hot enough to bake a cookie.

While many Congresspeople continue to insist that climate change is pseudo-science, one of the leading experts on agricultural commodities says it's a "fact" and likely to "cause massive disruptions" in food supplies around the world, pushing prices much higher on the exchanges and in the grocery...

With cleaner air and energy self-sufficiency high on America's list of priorities, our irrational dislike of nuclear power looks increasingly imprudent. China, France and the U.K. have raced ahead safely on nuclear power: It's well past time for the U.S. to start catching up.

Global temperatures in 2010 tied 2005 for the warmest on record and are likely to increase further as developing countries expand their economies and produce more greenhouse gases, the National Aeronautics and Space Administration (NASA) said in a report Wednesday.

A natural gas boom is coming in the U.S, but while consumers are likely to benefit from the cheap energy source, investors may not. Huge new discoveries of domestic reserves may keep prices down, and the political push toward renewable energy sources could cut into producers' profits.

As California voters wait to find out whether they've suspended a major global-warming law, which requires the state to scale back carbon emissions 25% to 1990 levels by 2020, New Mexico on Tuesday passed its own measure to reduce greenhouse-gas emissions -- but it only takes effect if other states follow suit.

From flooding in Pakistan to wildfires in Russia, something seems to be going on. Climate change? A growing number of businesses aren't waiting around to find out for sure. Instead, they're making pragmatic plans to get ready just in case.

Former U.S. Vice President Al Gore was a leading voice in the fight against climate change just three years ago. Now, amid accusations of sexual misconduct, he faces an image problem. Is the environment losing a key spokesman?