Exciting new ways to make fuels are emerging.
Politics continue to complicate energy policy.
Gregory Stephanopoulos explains challenges in converting biomass to biofuels.
Determining how fast ice sheets are melting is critical to future policy.
At a remote outpost in northern Greenland, a team of scientists are attempting to resolve the central mystery of global warming: how quickly will sea levels rise?
Plug-in hybrids could bring gas-free commutes. But will they make it to market?
Nanoengineered materials could reduce greenhouse-gas emissions.
The nanotech pioneer turns to energy.
It's time to move forward on regulating greenhouse gases and here's a regulatory plan that makes sense.
As the global picture grows grimmer, states and cities are searching for the fine-scale predictions they need to prepare for emergencies--and to keep the faucets running.