A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age resolving a long standing paradox over when that warming occurred ... - Read More
For decades climate scientists have tried to explain why ice age cycles became longer and more intense about 900 000 years ago switching from 41 000 year cycles to 100 000 year cycles In a ... - Read More
Methane is a simple molecule consisting of just one carbon atom bound to four hydrogen atoms But that simplicity belies the complex role the molecule plays on Earth it is an important greenhouse gas is ... - Read More
A new study uses carbon isotope dating to determine the first precise age for this bed and ties the western coast of Africa to 30 million years of global geologic records Paleontologists at Southern Methodist ... - Read More
The periodic table of the elements is to get crowded towards its heaviest members Evidence for the artificial creation of element 117 has recently been obtained at the GSI Helmholtz Centre for Heavy Ion Research ... - Read More
Parts of ancient Antarctica were as warm as today's California coast and polar regions of the southern Pacific Ocean registered 21st century Florida heat according to scientists using a new way to measure past temperatures ... - Read More
Why were Neanderthals replaced by anatomically modern humans around 40 000 years ago One popular hypothesis states that a broader dietary spectrum of modern humans gave them a competitive advantage on Neanderthals Geochemical analyses of ... - Read More
Capitalizing on the ability of an organism to evolve in response to punishment from a hostile environment scientists have coaxed the model bacterium Escherichia coli to dramatically resist ionizing radiation and in the process reveal ... - Read More
Using a cutting edge research technique UCLA researchers have reconstructed the temperature history of a region that plays a major role in determining climate around the world The findings published online Feb 27 in the ... - Read More
Serpentinite hosted hydrothermal systems have been suggested as likely sites for the formation of organic compounds in the abiotic conditions of early Earth that is in the absence of living organisms Such compounds were likely ... - Read More
Geologic time is shorthand for slow paced But new measurements from steep mountaintops in New Zealand show that rock can transform into soil more than twice as fast as previously believed possible The findings were ... - Read More
Some Heinrich events periodic massive iceberg surges into the North Atlantic that were previously thought to have weakened the global ocean conveyor belt circulation and sent Earth's climate into the deep freeze may actually have ... - Read More
Some 71% of Earth's surface is covered by oceans and 29% by land The question of when large landmasses emerged from the oceans has always been hotly debated by scientists New investigations by geoscientists of ... - Read More
In contrast to its apparent simplicity that brought Einstein his Nobel Prize the photoelectric effect when an electron is knocked out from its parent atom by a photon is quite complicated to analyze in general ... - Read More
Long lived deep sea corals preserve evidence of a major shift in the open Pacific Ocean ecosystem since around 1850 according to a study by researchers at the University of California Santa Cruz The findings ... - Read More
A molecule containing a noble gas has been discovered in space by a team including astronomers from Cardiff University The find was made using a Cardiff led instrument aboard Europe's Herschel Space Observatory The molecule ... - Read More
NASA's Curiosity rover is providing vital insight about Mars' past and current environments that will aid plans for future robotic and human missions In a little more than a year on the Red Planet the ... - Read More
Until now scientists were pretty sure they knew how the surface of a neutron star a super dense star that forms when a large star explodes and its core collapses into itself can heat itself ... - Read More
Although oxygen is required to sustain life oxygen sucks the life out of fusion by radiating away too much power from the high temperature plasma Accordingly great efforts are expended to reduce the oxygen found ... - Read More
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 perturbations took ... - Read More
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