One of the most important technological advances of our species happened for the first time only in the last 12,000 years: food production, including agriculture and animal husbandry. For nearly 7 million years prior, our ...
Plants & Animals
Mar 10, 2015
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Methane is a potent greenhouse gas, second only to carbon dioxide in its capacity to trap heat in Earth's atmosphere for a long time. The gas can originate from lakes and swamps, natural-gas pipelines, deep-sea vents, and ...
Earth Sciences
Mar 5, 2015
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44
Life teems all over our planet's exterior and even down into the lightless oceanic depths. But just how far underground might life be able to hack it?
Earth Sciences
Jan 12, 2015
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A new analysis of a Martian rock that meteorite hunters plucked from an Antarctic ice field 30 years ago this month reveals a record of the planet's climate billions of years ago, back when water likely washed across its ...
Space Exploration
Dec 22, 2014
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A study of tooth enamel in mammals living today in the equatorial forest of Gabon could ultimately shed light on the diet of long extinct animals, according to new research from the University of Bristol.
Archaeology
Dec 22, 2014
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A recent study of the global carbon cycle offers a new perspective of Earth's climate records through time. Scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science suggest that one of ...
Earth Sciences
Sep 16, 2014
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(Phys.org) —Paleontologists at Southern Methodist University have measured the carbon isotopes in marine fossils to precisely date for the first time 30 million years of sediments along Africa's South Atlantic shoreline.
Earth Sciences
May 15, 2014
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The oldest human footprints in North America have been dated for the first time and could help scientists to understand what Mexico's climate was like 7000 years ago.
Archaeology
Jan 2, 2014
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(Phys.org) —A record of ancient rainfall teased from long-buried sediments in Mongolia is challenging the popular idea that the arid conditions prevalent in Central Asia today were caused by the ancient uplift of the Himalayas ...
Earth Sciences
Dec 11, 2013
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Oxygen in the atmosphere and ocean rose dramatically about 600 million years ago, coinciding with the first proliferation of animal life. Since then, numerous short lived biotic events—typically marked by significant climatic ...
Earth Sciences
Oct 28, 2013
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