"Oklahoma was struck by a magnitude 5.1 earthquake on Saturday morning, the third-strongest quake ever recorded in the state, which has experienced a surge in seismic activity in recent years, the U.S. Geological Survey reported."

"DOE issued a proposed rule [Friday]afternoon for light bulbs that would likely lead to the phaseout of compact fluorescent lights (CFLs), analysts say."

"As many as 49 million people in southern Africa could be affected by a drought that has been worsened by the most severe and longest El Nino weather pattern in 35 years, the United Nations World Food Programme (WFP) said on Monday."

"Most science teachers in the United States spend some time on climate change in their courses, but their insufficient grasp of the science as well as political factors “may hinder effective teaching,” according to a nationwide survey of the profession.

"Brazil's health minister said Friday that authorities were "absolutely sure" that the Zika virus is connected to devastating birth defects and rejected criticism that the government was slow to investigate the surge of cases that set off international alarms."

"More than 5.5 million people die from air pollution each year, with more than 3 million of these deaths occurring in China and India, announced researchers Friday at the 2016 annual meeting for the American Association for the Advancement of Science."

"Residents of Flint, Michigan, began getting gravely ill and in some cases dying in summer 2014 in one of the worst outbreaks of Legionnaires' disease in U.S. history, and a county health director says attempts to find the source were hampered when the state wouldn't request federal assistance."

"White House officials began sifting through their pool of potential nominees for the newly vacant seat on the nation’s highest court Sunday, girding for battle with Republicans who are insisting that President Obama leave the choice of a new justice to his successor."

"It's a bit of a David vs. Goliath story, but seeing an 'existential threat,' a small vulnerable archipelago is taking a stand against big maritime interests."

"President Obama designated three new national monuments in the California desert Thursday, expanding federal protection to 1.8 million acres of landscapes that have retained their natural beauty despite decades of heavy mining, cattle ranching and off-roading."