National (U.S.)

"New federal regulations for electronic cigarettes go into effect Monday, requiring greater scrutiny of the products and making it more difficult for minors to vape."

"What would happen if the federal government ended its subsidies to companies that drill for oil and gas?"

"The clandestine group’s goal was clear: Obtain the building blocks of a radioactive 'dirty bomb' — capable of poisoning a major city for a year or more — by openly purchasing the raw ingredients from authorized sellers inside the United States."

"House Speaker Paul Ryan on Thursday said an expansive Asia-Pacific trade deal won’t get a vote in Congress this year because there isn’t enough support."

"PALO ALTO, Calif. -- Tim Thomson needed a charge, quickly. With his all-electric Nissan Leaf fast losing battery power and no places to plug in along the highway from Fresno, Calif., to San Francisco, Thompson turned to his iPhone. He pulled up an application called PlugShare that maps charging stations for electric vehicle drivers. A resident in nearby Madera had advertised his home charging station, so Thomson called in a panic."

"When the sickening odor swept across Matt Heissinger's farmstead, his daughter would sprint from their home to the car. Clinging to the girl's clothes and hair, the smell drove her to tears as she feared becoming a high school outcast."

"More than a dozen states have sued the Obama administration over a new Environmental Protection Agency (EPA) rule to limit methane emissions at oil and natural gas sites."

"There's a voracious little bug destroying forests across the eastern U.S. Scientists say emerald ash borers, exotic beetles imported accidentally from Asia, have killed as many as 50 million trees. They're now threatening groves in New York's Adirondack Mountains that are used to make an iconic kind of baseball bat."

"Being underwater will soon mean exactly what it says. Especially in Florida."

"Although most people associate [the National Park System] with preserving natural wonders like Grand Canyon or Yellowstone national parks, roughly two-thirds are, like Stonewall, designated specifically to protect historical or cultural resources."