Google: Jolly green giant?

The search and advertising company is a force to be reckoned with across the Web. Now it's looking to do the same in alternative energy (along with many others, large and small).

Google's energy push: Distraction, PR, or good business?

People are wondering why Google's getting into renewable energy. The answer is simple: it believes in innovation.
November 28, 2007

Google in energy: Imitator or innovator?

In Google's renewable-energy initiative, there are new ideas, and some reruns. Is the eSolar investment more of a VC deal than a way to push the frontiers of science?
November 28, 2007

MIT launches contest to fire up energy entrepreneurs

Need $200,000 or so to launch your clean-energy business? MIT, the Department of Energy, and a utility company are waiting to hear from you.
November 28, 2007

New method for making diesel fuel uses vegetable oils

A Portuguese oil company plans to announce it is building a 6,500-barrel-a-day plant to make diesel fuel from vegetable oils using a method akin to refining oil.
The New York Times
November 28, 2007

Google to enter clean-energy business

Search giant earmarks hundreds of millions of dollars with the goal of generating a gigawatt of clean energy that's cheaper than coal.
November 27, 2007

HP invests big in solar and wind

Hewlett-Packard buys into solar power in San Diego, but Google still retains bragging rights for largest corporate solar installation.
November 27, 2007

Can baking soda curb global warming?

A start-up in Texas says it can turn the carbon dioxide emitted by power plants into baking soda.
Photos: Fumes turned baking soda
November 27, 2007

Venture to make algae fuel from coal plant emissions

Can carbon dioxide be used to make a fuel? Australian companies Linc Energy and Bio Clean Coal to grow algae for biomass or biodiesel.
November 26, 2007

Updated: 4:57 PM PDT