"The Senate is set to greenlight its Keystone XL bill on Thursday, just 48 hours after Democrats forced Majority Leader Mitch McConnell to postpone victory on the oil pipeline he has made the GOP’s first priority for 2015."

"The head of the U.S. Environmental Protection Agency is scheduled to make a brief Vatican visit at the end of the week on the topic of addressing climate change."

Labor unions and environmentalists say the ultra-secret Trans Pacific Partnership trade treaty could nullify U.S. laws meant to protet Americans. They oppose the administration's bid for "fast-track" authority to present it to Congress on a take-it-or-leave it basis."

"The Obama administration moved Tuesday to open up a vast stretch of East Coast waters to oil and gas drilling, a decision that could have a profound impact on the economic and environmental future of states from Virginia to Georgia. The move also adds a new dimension to the legacy of President Obama."

"A climate-change skeptic at the Harvard-Smithsonian Center for Astrophysics who has relied on grants from fossil-fuel energy interests apparently failed to disclose financial conflicts of interest in a newly released paper, according to a complaint by a climate watchdog group."

"India and America's declaration of a breakthrough in contentious nuclear energy cooperation has been met with a lukewarm response from industry and analysts. Few expect the potentially lucrative Indian market to suddenly become less complicated for U.S. nuclear companies."

"The Obama administration on Tuesday will announce a proposal to open up coastal waters from Virginia to Georgia for oil and gas drilling, according to a person briefed on the plan."

"ANCHORAGE — Bitter reaction here to the Obama administration’s proposal to protect a huge portion of the Arctic goes beyond political divisions over oil and environmental policy, to questions about how Alaskans are perceived and respected in their sometimes awkward long-distance relationship with the rest of the nation, residents and political leaders say."

"Flexing its financial might, the political machine backed by billionaires Charles and David Koch on Monday told its allies that spending across its conservative network would approach $1 billion ahead of 2016's elections."