"An often-overlooked renewable energy source is gaining momentum as lawmakers on Capitol Hill struggle to find consensus in an increasingly partisan environment and the Obama administration is looking to decrease reliance on foreign oil."

"Each year, an ever larger portion of the world’s crops — cassava and corn, sugar and palm oil — is being diverted for biofuels as developed countries pass laws mandating greater use of nonfossil fuels and as emerging powerhouses like China seek new sources of energy to keep their cars and industries running."

The Japanese nuclear disaster is a reminder that the storage of spent fuel in temporary facilities across the United States may be a disaster waiting to happen.

"Japanese officials took some solace Wednesday in halting leaks of radioactive water from the nation's crippled nuclear plant. But in Washington, internal e-mails from the Nuclear Regulatory Commission revealed doubts within the organization about procedures for U.S. plants in a Fukushima-style event."

On a 50-50 vote, the Senate Wednesday night rejected an effort to strip EPA of its legal authority to regulate greenhouse gases, as well as several weaker alternatives. The efforts were supported by Republicans and some coal-state Democrats. The House may act on similar legislation today.