News tagged with periodicity

Climate connections

In common parlance, the phrase "global climate change" is often used to describe how present-day climate is changing in response to human activities. But climate has also varied naturally and sometimes quite ...

dateApr 14, 2015 in Earth Sciences
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Oldest known sponge found in China

(Phys.org)—A team of researchers with members from China, the U.S. and France has identified an ancient sponge found in a geologic formation in southern China and have dated it to 600 million years ago. ...

dateMar 10, 2015 in Evolution report
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