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Mercury in the Global Ocean

By Guest PostNovember 9, 2014Environmentashley tucker, by product, carbon dioxide, carl lamborg, don rice, Environment, global ocean, handelsbilanz, hav safety, havs, industrial revolution, marine environment, mathieu joerger, mercury, phosphate, robotic cars, rosette, self driving car, slay, sven willner, us wirtschaft

Study shows three times more mercury in upper ocean since Industrial Revolution

Although the days of odd behavior among hat makers are a thing of the past, the dangers mercury poses to humans and the environment persist today.

Mercury is a naturally occurring element as well as a by-product of such distinctly human enterprises as burning coal and making cement. Estimates of “bioavailable” mercury—forms of the element that can be taken up by animals and humans—play an important role in everything from drafting an international treaty designed to protect humans and the environment from mercury emissions, to establishing public policies behind warnings about seafood consumption. (more…)

Climate clues: Sunlight controls the fate of carbon released from thawing Arctic permafrost

By Guest PostOctober 10, 2014Environmentaquaculture pathology laboratory, arctic lakes, arctic permafrost, arun dhar, atmosphere, brenda noble, carbon dioxide, daniel steingart, early mortality syndrome, fabrication of nanostructures, global shrimp industry, john wettlaufer, kumimanu biceae, shrimp sample, unified theory, uralter vogel, water reuse, white spot disease, wsd

ANN ARBOR — Just how much Arctic permafrost will thaw in the future and how fast heat-trapping carbon dioxide will be released from those warming soils is a topic of lively debate among climate scientists.

To answer those questions, scientists need to understand the mechanisms that control the conversion of organic soil carbon into carbon dioxide gas. Until now, researchers believed that bacteria were largely responsible. (more…)

No way around it: Reducing emissions will be the primary way to fight climate change, UCLA-led study finds

By Guest PostJuly 14, 2014Environmentamount of carbon, atmosphere, carbon dioxide, carbon sequestration, CCS, climate change, corn plants, deforestation, eiweiss quelle, fight, fleischersatz, global warming, greenhouse gases, mikroklima, nahrung, NASA, pet imaging, release, richard ferrieri, robert hafner, soja agrobusiness, sojaanbau in Salta, sojaproduzent, ucla

Climate engineering won’t sufficiently stem global warming

orget about positioning giant mirrors in space to reduce the amount of sunlight being trapped in the earth’s atmosphere or seeding clouds to reduce the amount of light entering earth’s atmosphere. Those approaches to climate engineering aren’t likely to be effective or practical in slowing global warming. (more…)

NASA Orbiter Finds New Gully Channel on Mars

By Guest PostMarch 23, 2014Scienceball aerospace, carbon dioxide, highlands of mars, hirise camera, mars, mars reconnaissance orbiter, martian season, nasa orbiter, new gully channel, temperature, tucson, university of arizona

A comparison of images taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter in November 2010 and May 2013 reveal the formation of a new gully channel on a crater-wall slope in the southern highlands of Mars.

These before-and-after images are available online at https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17958 . (more…)

Amazon Inhales More Carbon than It Emits, NASA Finds

By Guest PostMarch 20, 2014EnvironmentAmazon, amazon basin, amazon carbon absorption, blowdowns, carbon, carbon balance, carbon cycle, carbon dioxide, emanuel gloor, global warming, inhale, michael keller, NASA, oliver phillips

A new NASA-led study seven years in the making has confirmed that natural forests in the Amazon remove more carbon dioxide from the atmosphere than they emit, therefore reducing global warming. This finding resolves a long-standing debate about a key component of the overall carbon balance of the Amazon basin.

The Amazon’s carbon balance is a matter of life and death: living trees take carbon dioxide out of the air as they grow, and dead trees put the greenhouse gas back into the air as they decompose. The new study, published in Nature Communications on March 18, is the first to measure tree deaths caused by natural processes throughout the Amazon forest, even in remote areas where no data have been collected at ground level. (more…)

Renewable energy resources

By Guest PostFebruary 10, 2014Science3d nanoporous structures, carbon dioxide, carbon monoxide, catalyst, catalytic environments, feng jiao, greenhouse gas, ionothermal synthesis, jonathan rosen, lithium manganese phosphate, nano porous, nanowire, polycrystalline silver, qi lu, renewable energy resources, silver electrocatalyst, sustainable energy research, university of delaware, useful chemicals

UD researchers report on new catalyst to convert greenhouse gases into chemicals

A team of researchers at the University of Delaware has developed a highly selective catalyst capable of electrochemically converting carbon dioxide — a greenhouse gas — to carbon monoxide with 92 percent efficiency. The carbon monoxide then can be used to develop useful chemicals.

The researchers recently reported their findings in Nature Communications. (more…)

Yale study: Forest emissions, wildfires explain why ancient Earth was so hot

By Guest PostFebruary 7, 2014Environment704 node cluster, aerosol particles, ancient atmospheric level, ancient earth, arabian peninsula, carbon dioxide, climate scientists, co2 concentration, co2 emission, earth, earth system model, forest emissions, hot, methane, model e2, nadine unger, omega supercomputer, ozone, pliocene, pre industrial climate, radiation balance, volatile organic compound, wildfires, yale study, yale university

The release of volatile organic compounds from Earth’s forests and smoke from wildfires 3 million years ago had a far greater impact on global warming than ancient atmospheric levels of carbon dioxide, a new Yale study finds.

The research provides evidence that dynamic atmospheric chemistry played an important role in past warm climates, underscoring the complexity of climate change and the relevance of natural components, according to the authors. They do not address or dispute the significant role in climate change of human-generated CO2 emissions. (more…)

Coral Reefs in Palau Surprisingly Resistant to Naturally Acidified Waters

By Guest PostJanuary 24, 2014Environment, Natureacidified waters, anne cohen, atmosphere, calcification, carbon dioxide, chemical oceanographer, CO2, coral reef ecosystem, coral reefs, creation of a plan, environmental condition, kathryn shamberger, negative change, ocean acidification, oceanographic institution, palau, perfect storm, ph, picrc, protected areas network, republic of palau, rock islands, water chemistry, western pacific ocean, whoi, woods hole, yimnang golbuu

Ocean researchers working on the coral reefs of Palau in 2011 and 2012 made two unexpected discoveries that could provide insight into corals’ resistance and resilience to ocean acidification, and aid in the creation of a plan to protect them.

The team collected water samples at nine points along a transect that stretched from the open ocean, across the barrier reef, into the lagoon and then into the bays and inlets around the Rock Islands of Palau, in the western Pacific Ocean. With each location they found that the seawater became increasingly acidic as they moved toward land. (more…)

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