Cigarette butts are the most pervasive man-made pollutant
July 22, 2019, 12:18 p.m. by Noel Kirkpatrick
These plastic filters far surpass plastic straws in coastal cleanup tallies.
Woman collects 2.4 tons of trash on Nova Scotia beaches in 1 year
June 4, 2019, 12:08 p.m. by Mary Jo DiLonardo
'It is not even a drop in the bucket.'
The Pliocene called. It wants its CO2 levels back.
May 13, 2019, 12:20 p.m. by Russell McLendon
Earth's atmosphere hasn't had this much CO2 in human history, and possibly not since the Pliocene Epoch about 3 million years ago.
Unhealthy air plagues our national parks, just like it plagues our cities
May 8, 2019, 2:35 p.m. by Matt Hickman
New report adds to concerns about air quality in what are supposed to be our most sacred places.
How California's improving air quality is putting a dent in the region's dangerous fog
April 24, 2019, 1:41 p.m. by Mary Jo DiLonardo
The dense fog has dropped 76% in recent years.