A state-by-state breakdown of policies that could change your community.
Science of the Union.
Looking for a clean fuel that grows anywhere, needs only sunlight and water, and could produce enough oil to free the U.S. from its petroleum addiction? Here´s one start-up's plan for converting oil from algae-yes, algae
Every day for the next two weeks we'll be unpacking the record behind the rhetoric
* that's a big, fat "might"
Two desktop-printer engineers quit their jobs to search for the ultimate source of endless energy: nuclear fusion. Could this highly improbable enterprise actually succeed?
Playing with time.
In a highlight of last week's conference, Gates calls for zero emissions and agrees with Obama: We need nukes
The first reactor-on-a-barge will bring power to Russiaâ€™s electricity-starved Arctic
The answers to the most nagging, fascinating, and bizarre questions of the summer movie season.
It might not (just) be foul play.
A new study suggests that ethanol production could drive up corn prices, leaving U.S. grains and meat in short supply
Our resident Hollywood physicist examines how even the most righteous crime fighters still manage to break the most important laws of all
In his State of the Union Address, Obama promised executive action to reduce pollution and fund alternative fuel research. Got questions? We'll be at the White House later today to get answers for you. UPDATE: The Q&A; is over now. Thanks for your great questions!
Societies forget, and this physicist wants to know why.
Q&A; with Sen. George Allen (R-Va.)
A 21st century electric-car revival is under way. But the first challenge—building a cheap, safe, powerful battery—is the hardest
Arun Majumdar has to decide which researchers will get millions of dollars, and he has to do it fast. He must spark an energy revolution within 20 years, or it's lights out for us all.
On its 150th anniversary, a chemist looks back at the various tables we almost ended up with.
Wind, solar, tidal—all are battling for the renewable-energy crown, but what about the six billion highly efficient short-stroke engines in our midst? What about us?
Tastes like chicken, runs like diesel