A state-by-state breakdown of policies that could change your community.
It might not (just) be foul play.
Science of the Union.
Playing with time.
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
* 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?
In a highlight of last week's conference, Gates calls for zero emissions and agrees with Obama: We need nukes
Excerpt: Mind Fixers
Nuclear power is the most efficient emissions-free energy available. But can it be made safe? Two new reactor designs do just that
Our resident Hollywood physicist examines how even the most righteous crime fighters still manage to break the most important laws of all
The first reactor-on-a-barge will bring power to Russiaâ€™s electricity-starved Arctic
Both the Atlantic and Pacific areas saw a record number and intensity of storms.
On its 150th anniversary, a chemist looks back at the various tables we almost ended up with.
Our editors scrounged up some truly bizarre facts.
Every day for the next two weeks we'll be unpacking the record behind the rhetoric
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
With so many problems with our oceans--and solutions to them--it can be tricky to know where to start. So we asked the experts
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!