Colorado drivers have been asked to leave their cars at home when they head out, in a bid to tackle poor air quality. An "Ozone Action Day Alert" was issued on Sunday afternoon that will remain in ...

Colorado drivers have been asked to avoid using their cars in a bid to improve air quality. Pictured: A car emits exhaust fumes in this archive stock image taken in February 2018 in Duesseldorf ...

Colorado is urging residents not to use their cars for 24 hours in order to guard against poor air quality in the state.. The state’s “Ozone Action Day Alert” went into effect on Sunday at 4 ...

Thousands of People Asked to Avoid Driving Cars for Three Days. Story by Anna Skinner ... Colorado, Wisconsin, New Hampshire, ...