How hot did Earth get in the past? Team of scientists uncovers new information
Tuesday, July 5, 2011 - 18:30
in Earth & Climate
The question seems simple enough: What happens to Earth's temperature when atmospheric carbon dioxide levels increase? The answer is elusive. However, clues are hidden in the fossil record. A new study provides a much clearer picture of Earth's temperature approximately 50 million years ago when CO2 concentrations were higher than today. The results may shed light on what to expect in the future if CO2 levels keep rising.