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Latest Nature Geoscience Stories

Team Finds Natural Reasons Behind Nitrogen-rich Forests
2012-01-19 04:29:24

Many tropical forests are extremely rich in nitrogen even when there are no farms or industries nearby, says Montana State University researcher Jack Brookshire. It's because of biological interactions that occur naturally in the forests, Brookshire and four colleagues said in a paper they published Jan. 15 in the online version of the journal Nature Geoscience. Disputing some long-held beliefs about high nitrogen levels in forests, Brookshire said pollution isn't always the reason...

CO2 Emissions Could Prevent Next Ice Age
2012-01-09 13:18:42

Increases in carbon dioxide emissions will prevent us from experiencing the next Ice Age, which experts believe would have occurred within the next millennium, according to research published in this week's edition of the journal Nature Geoscience. An international team of scientists examined variations in the Earth's orbit, as well as global weather and climate patterns, determining that the next worldwide deep-freeze should begin within the next 1,500 years, the Telegraph reported on...

2012-01-09 12:09:13

Unprecedented levels of greenhouse gases in the Earth's atmosphere are disrupting normal patterns of glaciation, according to a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature Geoscience. The Earth's current warm period that began about 11,000 years ago should give way to another ice age within about 1,500 years, according to accepted astronomical models. However, current levels of carbon dioxide are trapping too much heat in the atmosphere to...

2011-12-19 11:44:47

Humans pump thousands of tons of vapor from the metallic element mercury into the atmosphere each year, and it can remain suspended for long periods before being changed into a form that is easily removed from the atmosphere. New research shows that the upper troposphere and lower stratosphere work to transform elemental mercury into oxidized mercury, which can easily be deposited into aquatic ecosystems and ultimately enter the food chain. "The upper atmosphere is acting as a chemical...

Image 1 - Researchers Fingerprint Hawaiian Lava
2011-11-30 11:12:01

Lava fingerprinting reveals differences between Hawaii's twin volcanoes Hawaii's main volcano chains--the Loa and Kea trends--have distinct sources of magma and unique plumbing systems connecting them to the Earth´s deep mantle, according to UBC research published this week in Nature Geoscience, in conjunction with researchers at the universities of Hawaii and Massachusetts. This study is the first to conclusively relate geochemical differences in surface lava rocks from both...

Image 1 - Research Tracks Impact Of Air Pollution On Climate
2011-11-14 06:03:04

Clouds affected by spikes in air pollution levels can lead to reduced precipitation during dry conditions, as well as increased rain and snow during times and in places already being affected by severe storms, claims a new study published Sunday in the journal Nature Geoscience. The study, which was led by University of Maryland Professor of Atmospheric and Oceanic Science Zhanqing Li, claims to provide "the first clear evidence of how aerosols -- soot, dust and other small particles in...

Image 1 - Methane Could Be The Answer To 56-million-year Question
2011-11-09 12:32:20

Rice researchers show ocean could have contained enough methane to cause drastic climate change The release of massive amounts of carbon from methane hydrate frozen under the seafloor 56 million years ago has been linked to the greatest change in global climate since a dinosaur-killing asteroid presumably hit Earth 9 million years earlier. New calculations by researchers at Rice University show that this long-controversial scenario is quite possible. Nobody knows for sure what started...

2011-11-09 10:33:10

Woods Hole Oceanographic Institution (WHOI) scientists have found that carbon is stored in the soils and sediments of the Ganges-Brahmaputra basin for a surprisingly long time, making it likely that global warming could destabilize the pool of carbon there and in similar places on Earth, potentially increasing the rate of CO2 release into the atmosphere. The study, published in the current online edition of Nature Geoscience, examined the radiocarbon content of river sediments collected...

Image 1 - Run-off, Emissions Deliver Double Whammy To Coastal Marine Creatures
2011-10-25 03:07:28

Increasing acidification in coastal waters could compromise the ability of oysters and other marine creatures to form and keep their shells, according to a new study led by University of Georgia researchers. Their findings will be published in the November 2011 issue of Nature Geoscience. The researchers determined the combined effects of fertilizer runoff carried by the Mississippi River to the northern Gulf of Mexico and excess atmospheric carbon dioxide from burning fossil fuels result...

Image 1 - Fiery Volcano Give Researchers A Geologic Glimpse Into Land That Time Forgot
2011-10-20 09:31:50

[ Watch the Video ] The first scientists to witness exploding rock and molten lava from a deep sea volcano, seen during a 2009 expedition, report that the eruption was near a tear in the Earth's crust that is mimicking the birth of a subduction zone. Scientists on the expedition collected boninite, a rare, chemically distinct lava that accompanies the formation of Earth's subduction zones. Nobody has ever collected fresh boninite and scientists never had the opportunity to monitor...


Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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