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ScienceDaily: Earth Science News

Is Sahara Desert several million years older than previously thought?

The Sahara is the world’s largest subtropical desert. During the last decades, numerous scientific studies have probed its geological and archeological archives seeking to reveal its history. Des...

The future of global agriculture may include new land, fewer harvests

Climate change may expand suitable cropland, particularly in the Northern high latitudes, but tropical regions may becoming decreasingly suitable.<img src="http://feeds.feedburner.com/~r/science...

New explanation for origin of plate tectonics: What set Earth's plates in motion?

Geologists have a new explanation for the origin of plate tectonics. Researchers suggest it was triggered by the spreading of early continents then it eventually became a self-sustaining process.&l...

New instruments to learn about hurricane form and strength

NASA's Cloud Physics Lidar instrument, flying aboard an unmanned Global Hawk aircraft in this summer's Hurricane and Severe Storm Sentinel, or HS3, mission, is studying the changing profile of the ...

Study on global carbon cycle may require reappraisal of climate events in Earth's history

A recent study of the global carbon cycle offers a new perspective of Earth's climate records through time. Scientists suggest that one of the current methods for interpreting ancient changes in th...

The Gulf Stream kept going during the last Ice Age

The warm Atlantic water continued to flow into the icy Nordic seas during the coldest periods of the last Ice Age. An ice age may sound as a stable period of cold weather, but the name deceives. In...

3-D printing of rocks and fossils

Geologists are using 3-D printing to study the pores within limestone reservoir rocks. A better understanding of the pore networks within the rocks could help industry get at more oil.<img src="...

Tropical tree microbiome discovered in Panama

Despite the fact that tropical forests are the most biodiverse terrestrial ecosystems on the planet, more is known about belly-button bacteria than bacteria on trees in the tropics. Scientists work...

New producer of crucial vitamin B12 discovered

A single group of microorganisms may be responsible for much of the world's vitamin B12 production in the oceans, with implications for the global carbon cycle and climate change, researchers have ...

Early Earth less 'Hellish' than previously thought

Conditions on Earth during its first 500 million years may have been cool enough to form oceans of water instead of being too hot for life to form. This alternate view of Earth's first geologic eon...