Ninety-two percent of the world breathes air with unhealthy levels of pollutants, but these areas have it the worst.
Government shelling and airstrikes in the rebel-held Syrian city kill seven and put one of the medical facilities out of service, observers say.
Typhoon Megi caused more than $10 million in damage as it swept across Taiwan before weakening into a tropical storm.
Prosecutors conclude the plane was shot down in 2014 by a missile fired from rebel-held territory in Ukraine, victims’ families say.
The agreement would avert a potential federal shutdown and comes just three days before a midnight deadline.
President Obama is preparing to send more troops to Iraq to help reclaim Mosul from the Islamic State, U.S. officials say.
Voters in nine states will decide on ballot measures that could possibly expand legal access to marijuana.
The Arizona Republic, which has backed Republicans for president in each election since the 1890s, throws its support behind Hillary Clinton.
Authorities in suburban San Diego say a black man was shot and killed by police after pointing an object at officers.
The GOP nominee has let outsiders see these documents — when it suited his needs.
The child was born using a controversial new technique that combines DNA from three people in the embryo.
The 1994 Nobel Peace Prize winner, who recently suffered a stroke, was the nation's last remaining founding father.
For a brief moment, Donald Trump and Hillary Clinton find themselves on the same side of the gun debate.
CEO John Stumpf and a former Wells executive will forfeit millions of dollars in bonuses, the bank's board says.
The agency's investigation now includes suspected attempts to hack Democratic Party officials' mobile phones.
The presidential debate failed to tackle key economic issues head-on, according to Harvard Business School Professor Michael Porter.
Discussing these issues could eat up considerable debate time, but they're of critical importance.
He's unapologetic about his postdebate tweet that asks: "Notice Trump sniffing all the time. Coke user?"
“We have no illusions,” the White House said of Congress trying to thwart the move.