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How trees change the atmosphere

Rising from trees into the atmosphere, isoprene—a colorless, volatile, carbon-containing compound—smells vaguely like tires. It helped give the Blue Ridge Mountain range its name and has a profound effect upon the chemistry ...

dateDec 01, 2016 in Earth Sciences
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Manmade earthquakes in Oklahoma on the decline

New regulations in Oklahoma that call for reductions in the amount of wastewater being injected into seismically active areas should significantly decrease the rate of manmade, or "induced," earthquakes in the state, Stanford ...

dateNov 30, 2016 in Earth Sciences
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Arctic sea-ice growth slower than ever

ESA's CryoSat satellite has found that the Arctic has one of the lowest volumes of sea ice of any November, matching record lows in 2011 and 2012. Early winter growth of ice in the Arctic has been about 10% lower than usual.

dateNov 30, 2016 in Earth Sciences
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Nitrogen in ancient rocks a sign of early life

Nitrogen is one of the essential nutrients of life on Earth, with some organisms, such as the kinds of microbes found within the roots of legume plants, capable of converting nitrogen gas into molecules that other species ...

Satellites confirm sinking of San Francisco tower

The Sentinel-1 satellites have shown that the Millennium Tower skyscraper in the centre of San Francisco is sinking by a few centimetres a year. Studying the city is helping scientists to improve the monitoring of urban ground ...

Fault curvature may control where big quakes occur

Major earthquakes - magnitude 8.5 and stronger—occur where faults are mostly flat, say University of Oregon and French geologists. Curvier faults, they report in the journal Science, are less likely to experience earthquakes ...

Study sheds new insights into global warming 'hiatus'

A new study of the temporary slowdown in the global average surface temperature warming trend observed between 1998 and 2013 concludes the phenomenon represented a redistribution of energy within the Earth system, with Earth's ...

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