For more than a decade, the United States dramatically reduced its national smog levels, but since 2015 smoke from ...
The US had been reducing surface-level ozone, a harmful pollutant and the main component of smog, but that changed as ...
A view of a hazy sunset in downtown New Haven in a . Smoke from Canadian wildfires will cause hazy skies Saturday, as hot and ...
A recent study reveals that wildfires are reversing a decade of progress in reducing smog levels in the U.S., leading to ...
Millions of residents were urged to avoid using drive-thru lanes and limit certain everyday activities on Thursday.
A recent study reveals that increasing wildfire smoke since 2015 is reversing a decade-long decline in U.S. smog levels, ...
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