Most of the increase came from East Africa, including a pronounced, short-term boost in emissions from the Sudd, one of the world's largest wetlands, in South Sudan
Researchers have developed a graphene-titania photocatalyst that degrades up to 70 percent more atmospheric nitrogen oxides than standard titania nanoparticles in tests on real pollutants
University of Washington researchers have found that air pollution from electricity generation emissions in 2014 led to about 16,000 premature deaths in the continental US