At a Glance Each gallon of water in Tampa Bay has, on average, four particles of microplastic.Dry sediment around the bay has 3 trillion pieces of microplastic, the study found.Increasing rains caused by climate change could wash even more plastics into the bay. A 14-month study of Tampa Bay has found that the large body of water on Florida's Gulf Coast contains 4 billion particles of microplastics. Researchers from the University of South Florida St. Petersburg and Eckerd College, with...

At a Glance Hasankeyf is thought to be one of the oldest continuously inhabited settlements on Earth.Historical treasures at the site include ruins of a 12th-century palace and a mosque built in 1409.The area will be underwater when the Ilisu dam project comes online. A 12,000-year-old settlement on the banks of the Tigris River in Turkey that was once a stop on the Silk Road will soon be underwater. The town of Hasankeyf is one of about 200 settlements that...

New Delhi is one of the world’s most polluted cities, and it only gets worse in the winter. Government officials have announced plans to tackle the problem this year. But will it work? ...