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.
Michael Bloomberg gifts Sierra Club $30M to fund anti-coal efforts
April 8, 2015, 11:28 a.m. by Michael d'Estries
Billionaire philanthropist and former mayor says he's 'doubling down' on efforts to reduce carbon emissions and to replace half the nation's coal with clean energy by 2017.
Greenhouse effect is observed and getting worse
February 26, 2015, 3:27 p.m. by Becky Oskin, LiveScience
Researchers used powerful spectrometers to monitor and track how much infrared radiation was being trapped inside the Earth's atmosphere.
Did ocean's big CO2 burps end last ice age?
February 12, 2015, 10:56 a.m. by Becky Oskin, LiveScience
Scientists are not sure what caused these releases of carbon dioxide, with theories ranging from changes in ocean currents to more active underwater volcanoes.
NASA unveils satellite's 1st CO2 map of Earth
December 23, 2014, 10:44 a.m. by Megan Gannon, LiveScience
Scientists are hoping to compile the most complete picture to date of how carbon dioxide is distributed, both geographically and seasonally.
Earth's oceans hit warmest temperatures ever recorded
November 17, 2014, 4:18 p.m. by Russell McLendon
The average temperature of Earth's sea surface has reached levels unseen in more than a century of record-keeping.
U.S. and China reach historic deal on climate change
November 12, 2014, 11:14 a.m. by Russell McLendon
In a surprise announcement, Earth's two largest economies revealed a game-changing agreement to cut carbon emissions.
Humans need to ditch fossil fuels by 2100, IPCC warns
November 3, 2014, 3:30 p.m. by Russell McLendon
A major new U.N. climate report outlines what it will take for humanity to save itself from catastrophic climate change.
How much are plants helping us fight climate change?
October 16, 2014, 10:58 a.m. by Russell McLendon
Climate models may be underestimating plants' CO2 intake, a new study finds, but some experts downplay the significance.