With 7 of its most ambitious rules for cars, trucks and trains repealed, California officials now must find new ways to clean up the nation’s worst air pollution. But officials face growing pushback ...

We typically spend 80% of our time indoors, where the quality of the air we breathe depends on the age and type of building we occupy, as well as indoor pollution and outdoor pollution sources.

Inside the small craft -- which climbed to an altitude of around 1,500 metres (5,000 feet) -- a scientist tracks the flight path on an iPad as two crew members release icy water from a pair of ...

Air pollution used to be much worse. In October of 1948, a thick, choking smog settled over the small Pennsylvania town of Donora. The town was home to two steel plants.

New technologies including recoverable satellites and in-orbit space debris recycling could help solve the satellite air pollution problem and prevent a new ecological crisis in the future.

Researchers determined how much outdoor particulate pollution affects indoor air quality. Their study concluded pollution from inversion and dust events is kept out of buildings, but wildfire ...

University of Utah researchers used their Salt Lake City campus as lab to determine how much outdoor particulate pollution affects indoor air quality. Their study concluded pollution from ...