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People are trapped at the American University of Afghanistan in Kabul after reports of gunfire and blasts.

Almost 30 years after the Montreal Protocol, the ozone hole over Antarctica is becoming smaller. Leading scientists claim this hole could be gone by 2050.

Several surveys have shown that 97% of scientists believe climate change is caused by man. CNN's Chad Myers explains why that percentage is so important.

The sovereign wealth fund of Qatar made a $622 million investment on Tuesday in the Empire State Realty Trust. That's nearly a 10% stake in the building, plus other New York City real estate assets.

1992 Olympic 100-meter champion Linford Christie says it's time for a new generation of sprinters to step up to the mark.

Gunfire and blasts have been reported at the American University of Afghanistan in Kabul.

As the number of Zika cases in the United States continues to grow, Miami Beach's mayor is frustrated that Congress hasn't passed a bill to combat it.

Donald Trump's campaign manager Kellyanne Conway says that the Republican nominee did not participate in "pay to play," despite donating to the Clinton Foundation.

A 6.2-magnitude quake hit central Italy killing dozens of people. Witnesses describe the devastation.

As the dust settles and the death toll rises, a few survivors have been able to crawl out from underneath the rubble. CNN's Erin McLaughlin reports.

The concrete slides at Seward Mini Park is a long-time hidden attraction. And if you want to slide on them remember to bring a piece of cardboard for speed.

CNN's Chris Cuomo calls out the Trump campaign for a recent campaign ad which features an out-of-context clip of Cuomo speaking about Democratic nominee Hillary Clinton in 2014.

Some say the stock market is inflated, that there's a bubble on the horizon. But if today's bull market were to match the longest, it would have 5 more years to run.

Turkish tanks roll into Northern Syria as part of a military operation against ISIS. CNN's Ben Wedeman reports.

A look back at the most memorable moments from Britney Spears' Video Music Awards performances.

Rep. Chris Collins (R-NY) defends GOP nominee Donald Trump's immigration stance and insists the candidate is not flip-flopping on the issue.

Donald Trump's proposals harken back to a long history of "discrimination and restrictions" based on religion and race, says Associate Professor Khaled Beydoun.

When Rita McMahon found a half-dead goose on the side of a street in New York City, she quickly discovered that there was nowhere in the area to bring injured or sick wildlife. So McMahon took it upon herself to create a haven for injured birds by founding the Wild Bird Fund, which remains the only wildlife rehabilitation center in the city.

Tommaso Della Longa of the Italian Red Cross tells CNN's Isa Soares about the ongoing rescue and aid efforts in Amatrice, Italy.

The potential battle for the Iraqi city of Mosul, the process of naming tropical storms, and the status of a large wildfire are all featured this Wednesday.