Coal: 1, Fish: 0: Overruling an appeals court decision that cost cannot be used to decide which technology will best minimize environmental impacts, the Supreme Court ruled today that the government can use cost-benefit analysis in deciding whether to order power plants to install upgrades that would protect fish. — Associated Press
Cash-for-Clunkers Plan Accelerates: A recently revived plan to give cash to consumers who trade in old gas guzzlers in exchange for new, more fuel-efficient cars picked up sudden momentum this week with support from President Barack Obama, but hurdles remain. — Wall Street Journal
Virus Batteries: A new study from MIT finds viruses can be genetically engineered to build both the positively and negatively charged ends of a lithium-ion battery, with potential applications in plug-in cars and electronic devices. — PhysOrg
Cali Moves Closer to Stronger Clean Energy Mandate: California’s state Senate voted yesterday to require private utilities to get 33 percent of their energy from renewable sources by 2020, despite complaints from many lawmakers that it will cost ratepayers $1.8 billion more annually. — Los Angeles Times
What About Regional Climate Initiatives?: A key sentence in the draft climate and energy bill introduced yesterday could spell the end of the the cap-and-trade scheme engineered by 10 Northeastern states to cut greenhouse gas emissions. — NYT’s Green Inc.