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A cataclysmic event of a certain age

At the end of the Pleistocene period, approximately 12,800 years ago—give or take a few centuries—a cosmic impact triggered an abrupt cooling episode that earth scientists refer to as the Younger Dryas.

dateJul 27, 2015 in Earth Sciences
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Predicting the shape of river deltas

The Mississippi River delta is a rich ecosystem of barrier islands, estuaries, and wetlands that's home to a diverse mix of wildlife—as well as more than 2 million people. Over the past few decades, the shape of the delta ...

dateJul 22, 2015 in Earth Sciences
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Making Europe sweat

In 2003, Europe experienced a record-breaking summer, and many people feel that this summer is headed the same way. In the midst of this heatwave, the scientific journal Nature Geoscience has published a study that can help ...

dateJul 21, 2015 in Earth Sciences
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Antarctic offers insights into life on Mars

The cold permafrost of Antarctica houses bacteria that thrive at temperatures below freezing, where water is icy and nutrients are few and far between. Oligotrophs, slow-growing organisms that prefer environments where nutrients ...

dateJul 21, 2015 in Earth Sciences
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Cool summer of 2013 boosted Arctic sea ice

The volume of Arctic sea ice increased by a third after the summer of 2013 as the unusually cool air temperatures prevented the ice from melting, according to UCL and University of Leeds scientists. This suggests that the ...

dateJul 20, 2015 in Earth Sciences
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Secrets of dolerite sills

The exploitation of mineral deposits always creates debates around economic necessity versus environmental preservation. Fracking for gas in the Karoo region of South Africa is currently vigorously debated. This article is ...

dateJul 20, 2015 in Earth Sciences
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Sun's activity controls Greenland temperatures

The sun's activity could be affecting a key ocean circulation mechanism that plays an important role in regulating Greenland's climate, according to a new study. The phenomenon could be partially responsible for cool temperatures ...

Submerged volcanoes found off Sydney

Australia's new ocean-going research vessel Investigator has discovered extinct volcanoes likely to be 50 million years old about 250 kilometres off the coast of Sydney.

Iron: A biological element?

Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago.

Barnacles explain life at the extreme

Barnacles—a type of marine crustacean—are highly adaptable animals. Unlike many other groups that prefer quieter waters, they like areas with a lot of activity, are hardy against dry spells that sometimes occur in tidal ...

Warm winters, summer rain help wildfire recovery
Experiments open window on landscape formation
Analyzing ocean mixing reveals insight on climate
Ice sheet collapse triggered ancient sea level peak
Sudden draining of glacial lakes explained
Global climate on verge of multi-decadal change
A new timetable of eukaryotic evolution

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