Sentences with phrase «trouble cleaning air and water»
«Filters made with activated carbon granules have trouble cleaning air and water down to the low parts per million level,» says James Economy, head of the materials science department at the University of Illinois at Urbana - Champaign.
https://www.newscientist.com/ Not exact matches
Researchers at the University of Missouri have concluded that while the public is troubled about a range of environmental issues, close - to - home concerns like clean air and water outweigh fears of global warming.