Earth Hasnât Heated Up This Fast Since the Dinosaursâ EndPeople are sending carbon into the atmosphere ten times faster than during the hottest period in the past 66 million years. Carbon is pouring into the atmosphere faster than at any time in the past 66 million yearsâsince the dinosaurs went extinctâaccording to a new analysis of the geologic record. The study underscores just how profoundly h
Vegetation growth at Earth's northern latitudes increasingly resembles lusher latitudes to the south, according to a NASA-funded study based on a 30-year record of land surface and newly improved satellite data sets. An international team of university and NASA scientists examined the relationship between changes in surface temperature and vegetation growth from 45 degrees north latitude to the Ar
The Pilbara discovery, if proven, could help Curiosity's search for the building blocks of life on Mars.Credit: NASA These traces of bacteria "are the oldest fossils ever described. Those are our oldest ancestors," said Nora Noffke, a biogeochemist at Old Dominion University in Norfolk who was part of the group that made the find and presented it last month at a meeting of the Geological Society o
An animated view of Antarctica, revealing its great mountains and deepest depressions The map is a fascinating perspective but it is more than just a pretty picture - it represents critical knowledge in the quest to understand how Antarctica might respond to a warming world. Scientists are currently reporting significant changes at the margins of the continent, with increasing volumes of ice now b
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