"The Environmental Protection Agency said it will delay carbon rules for power plants, missing a deadline set by President Barack Obama in one of the centerpieces of his climate-change agenda."

"International trade agreement proposals could roll back protections from harmful pesticides in the US and EU, according to a new report expected to be released Wednesday."

"The U.S. Forest Service has abruptly decided not to spend $10 million on a five-year nationwide public relations campaign to brand itself as a public agency that cares about people and nature."

"RIO DE JANEIRO — Calling Aldo Rebelo a climate-change skeptic would be putting it mildly. In his days as a fiery legislator in the Communist Party of Brazil, he railed against those who say human activity is warming the globe and called the international environmental movement 'nothing less, in its geopolitical essence, than the bridgehead of imperialism.'"

"In an inaugural address drawing on his family's deep roots in California, Gov. Jerry Brown called for expansive new environmental regulations that would protect the state for future generations."

"The White House issued a veto threat Tuesday for pending legislation intended to force federal approval of the Keystone XL pipeline."

"Not every Republican in the incoming 114th Congress dismisses human-driven climate change. A few within the GOP majority accept the science. But on key policies, expect them to vote with those who dismiss the issue as a hoax.""

"Supporters of a bill to approve the Keystone XL pipeline lack the votes to overcome a potential presidential veto and will seek changes during debate to pick up Democratic support, a key Republican lawmaker said."

"Oil prices tumbled below $50 a barrel on Monday, spooking global financial markets and signaling that the remarkable 50 percent price drop since June was continuing this year and even quickening."

"LONGMONT, Colo. — This northern Colorado city vaulted onto the front lines of the battle over oil and gas drilling two years ago, when residents voted to ban hydraulic fracturing from their grassy open spaces and a snow-fed reservoir where anglers catch smallmouth bass."