"SunEdison, which started out making chemicals and components for solar modules but grew into a giant of renewable energy, has filed for bankruptcy protection, the company said on Thursday."

"The World Bank and International Monetary Fund are pressing governments to impose a price tag on planet-warming carbon dioxide emissions, using economic leverage and technical assistance that institutions like the United Nations cannot muster."

"The energy giant Kinder Morgan Inc. has pulled the plug on its controversial natural gas pipeline proposed through parts of Massachusetts and Southern New Hampshire, after failing to sign up enough utility customers and facing stiff consumer and political opposition."

"Renewable energy firm SunEdison filed for Chapter 11 bankruptcy reorganization Thursday in New York, punctuating a tumultuous period in which the company failed to deliver on energy projects it had promised and came under scrutiny for its financial reporting."

"The experimental plane called Solar Impulse 2 has taken off in Hawaii after a nine-month delay for repairs."

"San Francisco today became the first major city in the country to approve legislation requiring solar panels on new buildings."

"The Senate on Wednesday passed the first broad energy bill since the George W. Bush administration, a bipartisan measure to better align the nation’s oil, gas and electricity systems with the changing ways that power is produced in the United States."

"The Supreme Court on Tuesday ruled that Maryland overstepped its authority when it implemented a program to subsidize construction of natural-gas-fired power plants."

"The House Appropriations Committee voted Tuesday to approve bills to fund the Agriculture and Energy departments and the Army Corps of Engineers."

"An as-yet-to-be-introduced bill that would extend a freeze on Ohio’s renewable-energy requirements for an additional three years is already drawing opposition."