Scikon
Original news saved on 2 July 2009, 04:35 GMT
from Science Daily. More below:
Plants Save The Earth From An Icy Doom
When glaciers advanced over much of the Earth's surface during the last ice age, what kept the planet from freezing over entirely? This has been a puzzle to climate scientists because leading models have indicated that over the past 24 million years geological conditions should have caused carbon dioxide levels in the atmosphere to plummet, possibly leading to runaway "icehouse" conditions. Now researchers report on the missing piece of the puzzle -- plants.