Carbon dioxide in Earth's atmosphere just reached a major milestone
September 29, 2016, 9:36 a.m. by Russell McLendon
CO2 data from Mauna Loa in Hawaii suggest 400 ppm is the new normal.
As U.N. makes history on Earth Day, Leonardo DiCaprio reminds us not to rest on laurels
April 22, 2016, 2:31 p.m. by Russell McLendon
More than 170 world leaders signed the Paris Agreement on Earth Day 2016, but that's just the beginning.
The Pliocene called. It wants its CO2 levels back.
May 8, 2015, 11:24 a.m. by Russell McLendon
Earth just averaged 400 parts per million of carbon dioxide for a month, which hasn't happened in human history — and possibly not since the Pliocene Epoch about 3 million years ago.
How to view the total solar eclipse without ruining your eyes
Nobody wants the family heirlooms anymore
This feral 'grandpa' cat may not care for humans, but oh, does he love kittens
A rescued sea otter pup is swimming in cute at the Vancouver Aquarium
What's that sound? 7 wildlife calls you might hear in your backyard
13 natural solutions for killing and deterring ants