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Geochemical Method Finds Links Between Terrestrial Climate and Atmospheric Carbon Dioxide
April 22, 2013 — Scientists used a new chemical technique to measure the change in terrestrial temperature associated with a major shift in global atmospheric CO2 concentrations nearly 34 million years ago. Their ... > full story -
First 2,000-Year-Long Temperature Reconstructions for Individual Continents
April 21, 2013 — Past climate change varied remarkably between regions. This is demonstrated in a new study coordinated by the international Past Global Changes (PAGES) project, which reconstructed temperature over ... > full story -
Sea-Ice Ecosystem Possibly Triggered Evolution of Baleen Whales and Penguins
April 18, 2013 — The origin of the unique plankton ecosystem of the circum-Antarctic Southern Ocean can be traced back to the emergence of the Antarctic ice sheets approximately 33.6 million years ago. This discovery ... > full story -
Maya Long Count Calendar Calibrated to Modern European Calendar Using Carbon-14 Dating
April 11, 2013 — The Maya are famous for their complex, intertwined calendric systems, and now one calendar, the Maya Long Count, is empirically calibrated to the modern European calendar, according to an ... > full story -
A Comet, Not an Asteroid, May Have Killed the Dinosaurs, Experts Propose
April 4, 2013 — In a geological moment about 66 million years ago, something killed off almost all the dinosaurs and some 70 percent of all other species living on Earth. Only those dinosaurs related to birds appear ... > full story -
Ancient Pool of Warm Water Questions Current Climate Models
April 3, 2013 — A huge pool of warm water that stretched out from Indonesia over to Africa and South America four million years ago suggests climate models might be too conservative in forecasting tropical changes. ... > full storyMore: -
Megavolcanoes Tied to Pre-Dinosaur Mass Extinction: Apparent Sudden Climate Shift Could Have Analog Today
March 21, 2013 — Scientists examining evidence across the world say they have linked the abrupt disappearance of half of earth's species 200 million years ago to a precisely dated set of gigantic volcanic eruptions. ... > full storyMore: -
Dinosaur-Era Climate Change Study Suggests Reasons for Turtle Disappearance
March 14, 2013 — Dramatic climate change was previously proposed to be responsible for the disappearance of turtles 71-million-years ago, because they were considered to be "climate-sensitive" animals. Results of ... > full story -
Earth Warmer Today Than During 70 to 80 Percent of the Past 11,300 Years
March 7, 2013 — Using data from 73 sites around the world, scientists have been able to reconstruct Earth's temperature history back to the end of the last Ice Age, revealing that the planet today is warmer than it ... > full story -
Researchers Find New Information About 'Snowball Earth' Period
February 28, 2013 — Researchers report new clues on the duration of what was a significant change in atmospheric conditions following the Marinoan ... > full story
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