Nav: Home

At last, an inventory of the ocean's dissolved sulfur

October 06, 2016

The dissolved fraction of organic sulfur in the ocean is the most abundant form of sulfur there by a factor of ten, a new study finds. The results, which represent the first basin-wide measurements of dissolved organic sulfur in the ocean, challenge current views of marine sulfur dynamics, suggesting gaps in researchers' understanding. Although sulfur is an essential element for phytoplankton survival and for various climate processes, including aerosol formation and climate regulation, little is known about the oceanic pool of dissolved organic sulfur, a form that is particularly hard to detect. Here, using water samples collected along a transect in the East Atlantic and Southern Ocean between November and December 2008, Kerstin Ksionzek and colleagues calculated an inventory of dissolved organic sulfur stock. Their results, which they extrapolate to global oceans, suggest that dissolved organic sulfur is by far the largest oceanic reservoir of organic sulfur, exceeding all other marine organic sulfur reservoirs by an order of magnitude. What's more, dissolved organic sulfur is also actively involved in the microbial loop, quite similar to organic nitrogen.
-end-


American Association for the Advancement of Science

Related Sulfur Articles:

A seaweed derivative could be just what lithium-sulfur batteries need
Lithium-sulfur batteries have great potential as a low-cost, high-energy, energy source for both vehicle and grid applications.
Science fiction horror wriggles into reality with discovery of giant sulfur-powered shipworm
Our world seems to grow smaller by the day as biodiversity rapidly dwindles, but an international team of researchers discovered a never before studied giant, black, mud dwelling, worm-like animal.
Researchers develop a new way to study key biological processes
A team of scientists at The University of East Anglia (UEA) has developed a novel way to obtain previously inaccessible insight into the functions of a group of essential proteins.
New gel-like coating beefs up the performance of lithium-sulfur batteries
Yale scientists have developed an ultra-thin coating material that has the potential to extend the life and improve the efficiency of lithium-sulfur batteries, one of the most promising areas of energy research today.
Volcano breath: Measuring sulfur dioxide from space
In a new study published in Scientific Reports this week, a team led by researchers from Michigan Technological University created the first, truly global inventory for volcanic sulfur dioxide emissions, using data from the Dutch-Finnish Ozone Monitoring Instrument on NASA's Earth Observing System Aura satellite launched in 2004.
A new approach to improving lithium-sulfur batteries
Researchers from the University of Delaware and China's Northwestern Polytechnical University, Shenzhen University and Hong Kong Polytechnic University have demonstrated a new polysulfide entrapping strategy that greatly improves the cycle stability of Li-S batteries.
Getting rid of the last bits of sulfur in fuel
A new technique could help scrub the last traces of sulfur from diesel and gas.
Looking for the next leap in rechargeable batteries
USC researchers may have just found a solution for one of the biggest stumbling blocks to the next wave of rechargeable batteries -- small enough for cellphones and powerful enough for cars.
The hidden side of sulfur
The active element in the molecule that initiates transformations in synthetic organic chemistry, known as the catalyst, is often hydrogen.
New findings boost promise of molybdenum sulfide for hydrogen catalysis
Researchers from North Carolina State University, Duke University and Brookhaven National Laboratory have found that molybdenum sulfide (MoS2) holds more promise than previously thought as a catalyst for producing hydrogen to use as a clean energy source.

Related Sulfur Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Climate Crisis
There's no greater threat to humanity than climate change. What can we do to stop the worst consequences? This hour, TED speakers explore how we can save our planet and whether we can do it in time. Guests include climate activist Greta Thunberg, chemical engineer Jennifer Wilcox, research scientist Sean Davis, food innovator Bruce Friedrich, and psychologist Per Espen Stoknes.
Now Playing: Science for the People

#527 Honey I CRISPR'd the Kids
This week we're coming to you from Awesome Con in Washington, D.C. There, host Bethany Brookshire led a panel of three amazing guests to talk about the promise and perils of CRISPR, and what happens now that CRISPR babies have (maybe?) been born. Featuring science writer Tina Saey, molecular biologist Anne Simon, and bioethicist Alan Regenberg. A Nobel Prize winner argues banning CRISPR babies won’t work Geneticists push for a 5-year global ban on gene-edited babies A CRISPR spin-off causes unintended typos in DNA News of the first gene-edited babies ignited a firestorm The researcher who created CRISPR twins defends...