Beijing says air quality improved in first half of 2016

Beijing's notoriously awful air quality improved significantly in the first half of the year, with actions taken to curb the city's heavy pollution having a positive effect, officials in the Chinese capital said.

Dust storms in Africa affect US and the Caribbean's air quality

You might find it hard to believe that dust clouds from the African Sahara can travel thousands of miles across the Atlantic Ocean, but it does every year and in large quantities. In a recent study, Joseph Prospero, professor ...