Trees saved this man's life; now he's returning the favor
May 6, 2015, 3:31 p.m. by Mary Jo DiLonardo
'Tree Hunter' Rob McBride travels the U.K. and Europe drawing attention to these ancient giants.
Four in 10 in U.S. live with dangerous air pollution
April 29, 2015, 11:44 a.m. by Mary Jo DiLonardo
American Lung Association's annual report looks at soot and smog — and many cities don't fare well.
Newly discovered glass frog looks a lot like Kermit
April 21, 2015, 10:32 a.m. by Mary Jo DiLonardo
Muppet-like creature with a see-through belly found hanging out in the jungles of Costa Rica.