National (U.S.)

"A Senate committee on Wednesday questioned a panel of specialists about the safety and security of nuclear reactors that have been retired or forced out of business."

Science discovered the "greenhouse effect" back in the 1820s. Republicans and oil companies only started denying it very recently.

"CALGARY, Alberta — With TransCanada’s Keystone XL pipeline snarled in a regulatory and legal struggle south of the border, Canadian oil companies are proposing many new and expanded pipelines that would connect the oil sands fields with new markets in China and across the world."

"A foreign oil company convicted of polluting a Texas community's air with dangerous chemicals has gotten off easy in a criminal case that could undercut the prosecution of environmental crimes in the United States. The case revolves around Venezuelan-owned Citgo Petroleum’s decade-long violation of the federal Clean Air Act at its refinery in Corpus Christi."

"U.S. children working in domestic tobacco fields regularly suffer from breathing problems, nausea and other ailments, an international rights group said in a report on Wednesday, urging the industry to develop tougher protections for its youngest workers."

"Seeking to close what a lawyer called 'serious gaps' in regulation, 64 environmental and community groups on Tuesday petitioned the Environmental Protection Agency to clamp down on toxic air emissions from oil and gas operations."

"Instead of a one-on-one faceoff, 'Last Week Tonight' hosts one that is 97 against 3."

"Smog could worsen across the United States in the coming decades as climate change boosts summer temperatures and makes ozone levels more difficult to control, a new study says."

"New York has its Empire State Building, Paris has its Eiffel Tower and now, finally, Washington has its Monument back. The best view in the District and one of the city’s signature tourist draws returned to duty Monday when the obelisk reopened after $15 million in repairs following the 2011 earthquake."

"A draft letter from a U.S. EPA science advisory committee recommends a tight standard for how much ozone pollution can be in the air, recommending that the lower bound of the standard should be 60 parts per billion, much lower than the current standard. But the letter notes that committee members haven't made a decision on the upper bound of the ozone standard."