Posts Tagged ‘geochemistry’
Gulf ‘swirl’ key to recovery after oil spill
UC SANTA BARBARA (US) — A new computer model shows how bacteria, topography, and water currents combined to remove methane and other chemicals from the Gulf of Mexico following the Deepwater Horizon oil spill in April 2010. Continue…
Tuesday, January 10, 2012 17:02 - 0 Comments
Earth & Environment - Oct 5, 2011 9:19 - 1 Comment
Bacteria: First responders in Gulf spill
UC SANTA BARBARA (US) — Bacteria present in the Gulf of Mexico were responsible for consuming large amounts of natural gas immediately following the Deepwater Horizon oil spill in April 2010. (more…)
Top Stories - May 26, 2011 15:09 - 2 Comments
Moon water—and lots of it
BROWN (US) — There is water inside the moon—so much, in fact, that in some places it rivals the amount of water found within the Earth. (more…)
Science & Technology - May 25, 2011 16:35 - 3 Comments
Mars grew fast but stayed small
U. CHICAGO (US) — Mars formed quickly—in as little as two to four million years after the birth of the solar system—which helps explain why it is so small, say researchers. (more…)
Earth & Environment - May 11, 2011 13:58 - 0 Comments
Pollutant-H20 mix key to climate change
U. OREGON (US) — The impact that surface molecules of water have on airborne pollutants should be considered in climate modeling, given their significant effect on the future of global warming. (more…)
Earth & Environment - Apr 25, 2011 11:43 - 2 Comments
Pressure makes hydrocarbons
UC DAVIS (US) — At deep Earth pressures and temperatures, longer hydrocarbons may form from the simplest one, the methane molecule. (more…)
Earth & Environment - Apr 18, 2011 11:33 - 1 Comment
Early Earth was a hot, acidic home
GEORGIA TECH (US) — During the last 4 billion years, ancient enzymes have adapted from a much hotter, more acidic environment to the cooler global one that exists today. (more…)
Top Stories - Apr 6, 2011 11:17 - 1 Comment
Why comets aren’t just ‘dirty snowballs’
U. ARIZONA (US) — Evidence of liquid water in a comet blows apart current thinking that comets never get warm enough to melt the ice that makes up the bulk of their material. (more…)
Earth & Environment - Jan 28, 2011 11:35 - 0 Comments
Fossils link cooler ocean to extinction
CALTECH (US) — New evidence supports the idea that a mass extinction 450 million years ago was linked to a cooling climate. (more…)
Earth & Environment - Jan 27, 2011 12:45 - 0 Comments
Oil dispersant lingers in Gulf
UC SANTA BARBARA (US) — A major component of the nearly 800,000 gallons of chemical dispersant used in the Gulf to breakup oil from last year’s Deepwater Horizon spill is not degrading. Now researchers question its potential long-term effects. (more…)
Earth & Environment - Sep 7, 2010 14:31 - 0 Comments
Is calcium carbonate Earth’s secret weapon?
UC DAVIS (US)—Calcium carbonate is the common thread that links sea urchins, limestone, and climate change, according to a new study. (more…)
Earth & Environment - May 7, 2010 16:33 - 0 Comments
Stream water may signal permafrost thawing
U. MICHIGAN (US)—Chemical tracers in stream water are offering scientists a new way to monitor changes in the Arctic permafrost—soil that normally remains at or below the freezing point for years—as an indicator of global warming. (more…)
Earth & Environment - Apr 21, 2010 19:57 - 1 Comment
Buried shells are no ecological treasure
RICE (US)—Fan-Wei Zeng saw seashells, but not by the seashore. In fact, they were quite far away, and they were skewing the Rice University graduate student’s study of the environmental impact of Houston’s rivers. (more…)
Earth & Environment - Apr 15, 2010 12:57 - 0 Comments
Tapping nature to clean up radioactive sites
U. CHICAGO (US)—Some bacteria can change Uranium (VI)—which is radioactive, toxic, and water-soluble—into a more insoluble, stationary, and thus less harmful substance. A team of scientists is trying to determine how to harness this chemical transformation to reduce the danger posed by the more than 1,000 uranium-contaminated sites scattered across the nation. (more…)
Earth & Environment - Apr 12, 2010 12:21 - 0 Comments
In China, a mining town amid toxic heaps
INDIANA U. (US)—Waters around the Xikuangshan mine in southwest China contain levels of antimony that are two to four orders of magnitude higher than normal, making it a unique laboratory to study the contaminant’s environmental impact. (more…)
Earth & Environment - Mar 11, 2010 11:11 - 0 Comments
How early humans adapted to climate change
U. BUFFALO (US)—Siberia’s remote Kamchatka peninsula, a rough and extremely volcanic wilderness region the size of California, is the current site of an international effort to understand how humans living 4,000 to 6,000 years ago reacted to climate changes. (more…)
Earth & Environment - Oct 20, 2009 11:32 - 0 Comments
Arctic cores signal ‘unique’ climate shift
U. COLORADO (US)—An analysis of sediment cores indicates that biological and chemical changes occurring at a remote Arctic lake are unprecedented over the past 200,000 years and likely are the result of human-caused climate change. (more…)
