"Democratic presidential hopeful Bernie Sanders has a new line of attack against Hillary Clinton tailor-made for New York voters: that she is too soft on hydraulic fracturing."

"Institutions managing $6 trillion in assets plan to back a call for U.S. oil major ExxonMobil to disclose the impact of climate change policy on its business, one of the organizers of the vote said on Tuesday."

"A new report calls into question — again — California’s handling of this winter’s historic natural gas leak, this time suggesting that regulators and the gas company are purposely scaring the community and legislature into putting the storage facility back online."

"Peabody Energy Corp, the world's largest privately owned coal producer, filed for U.S. bankruptcy protection on Wednesday in the wake of a sharp fall in coal prices that left it unable to service a recent debt-fueled expansion into Australia."

"With Massey Energy boss Don Blankenship headed to prison and some of the industry’s biggest companies bankrupt, a historic transformation may be ahead".

"As Pennsylvania’s natural gas production continues to expand, so does the possibility of potentially harmful methane emissions."

"Renewable energy and new technologies that are making low-carbon power more reliable are growing rapidly in the U.S. Renewables are so cheap in some parts of the country that they're undercutting the price of older sources of electricity such as nuclear power."

"TransCanada Corp. has resumed sending oil through the Keystone Pipeline after a weeklong shutdown prompted by a leak and oil spill in southeastern South Dakota."