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News articles about "Sediments"

Worldwide ban on flame retardant

Plastics
The flame retardant HBCD may no longer be produced or used This was decided by representatives from over 160 countries in late May at a UN conference on chemicals in Geneva Empa's extensive research on ... - Read More

New risk model sheds light on arsenic risk in China's groundwater

Light, Light
Arsenic laden groundwater used for cooking and drinking could pose a risk to the health of almost 20 million people across China This is shown by a study carried out by Eawag scientists in collaboration ... - Read More

Morphing manganese: New discovery alters understanding of chemistry that moves elements through natural world

Elements
An often overlooked form of manganese an element critical to many life processes is far more prevalent in ocean environments than previously known according to a study led by University of Delaware researchers that was ... - Read More

Novel worm community affects methane release in ocean

Community
Scientists have discovered a super charged methane seep in the ocean off New Zealand that has created its own unique food web resulting in much more methane escaping from the ocean floor into the water ... - Read More

Sediment trapped behind dams makes them 'hot spots' for greenhouse gas emissions

With the green reputation of large hydroelectric dams already in question scientists are reporting that millions of smaller dams on rivers around the world make an important contribution to the greenhouse gases linked to global ... - Read More

Ancient ice melt unearthed in Antarctic mud: 20-meter sea level rise, five million years ago

sea, Ice
Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres scientists report today in the journal Nature Geoscience The ... - Read More

Ancient ice melt unearthed in Antarctic mud: 20 meter sea level rise, five million years ago

Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres scientists report today in the journal Nature Geoscience The ... - Read More

Scientists discover new variability in iron supply to the oceans with climate implications

Oceans
The supply of dissolved iron to oceans around continental shelves has been found to be more variable by region than previously believed with implications for future climate prediction Iron is key to the removal of ... - Read More

Compound Discovered at Sea Shows Potency against Anthrax

Released 7 17 2013 4 35 PM EDTSource Newsroom University of California San Diego more news from this source Jul 18 2013 A team led by William Fenical at Scripps Institution of Oceanography at UC ... - Read More

'Cold snap' 116 million years ago triggered marine ecosystem crisis

Ecosystem, Ecosystem, marine, Marine
A cold snap 116 million years ago triggered a similar marine ecosystem crisis to the ones witnessed in the past as a result of global warming according to research published in Nature Geoscience The international ... - Read More

Global cooling as significant as global warming, study of marine ecosystems during Cretaceous period shows

Ecosystems
A cold snap 116 million years ago triggered a similar marine ecosystem crisis to the ones witnessed in the past as a result of global warming according to research published in Nature Geoscience The international ... - Read More

Deep biosphere harbors active, growing communities of microorganisms

Microorganisms, Biosphere
The deep biosphere the realm of sediments far below the seafloor harbors a vast ecosystem of bacteria archaea and fungi that are actively metabolizing proliferating and moving according a new study by scientists at Woods ... - Read More

Life underground: Microbes active far beneath seafloor

Microbes are living more than 500 feet beneath the seafloor in 5 million year old sediment according to new findings by researchers at the University of Delaware and Woods Hole Oceanographic Institution WHOI Genetic material ... - Read More

Leakage of carbon from land to rivers, lakes, estuaries and coastal regions revealed

Carbon, carbon
When carbon is emitted by human activities into the atmosphere it is generally thought that about half remains in the atmosphere and the remainder is stored in the oceans and on land New research suggests ... - Read More

Acceleration of ocean denitrification during deglaciation documented

As ice sheets melted during the deglaciation of the last ice age and global oceans warmed oceanic oxygen levels decreased and denitrification accelerated by 30 to 120 percent a new international study shows creating oxygen ... - Read More

Disappearance of stromatolites, earliest visible manifestation of life: Ancient enigma solved?

Structure, Structure
The widespread disappearance of stromatolites the earliest visible manifestation of life on Earth may have been driven by single celled organisms called foraminifera The findings by scientists at Woods Hole Oceanographic Institution WHOI Massachusetts Institute ... - Read More

Scientists find possible solution to an ancient enigma

Solution
The widespread disappearance of stromatolites the earliest visible manifestation of life on Earth may have been driven by single celled organisms called foraminifera The findings by scientists at Woods Hole Oceanographic Institution WHOI Massachusetts Institute ... - Read More

Geochemist aids development of geologic time scale for study of Earth's history

Time
A Boise State University researcher has taken a lead role in developing the most current timetable on Earth's geologic history Geochemist Mark Schmitz is one of four editors on The Geologic Time Scale 2012 or ... - Read More

The Black Sea is a goldmine of ancient genetic data

sea
When Woods Hole Oceanographic Institution WHOI marine paleoecologist Marco Coolen was mining through vast amounts of genetic data from the Black Sea sediment record he was amazed about the variety of past plankton species that ... - Read More

Lake found in Sierra Nevada with the oldest remains of atmospheric contamination in Southern Europe

Atmospheric
A team of scientists find in the Laguna de Rio Seco lagoon at an altitude of 3 020 m evidence of atmospheric pollution caused by lead and linked to metallurgical activities from 3 900 years ... - Read More
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