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Carbon in Biological News

Carbon nanoparticles toxic to adult fruit flies but benign to young

... PROVIDENCE, R.I. [Brown University] carbon nanoparticles are widely used in medicine, ... at Brown University sought to determine how carbon nanoparticles would affect fruit flies from the ... physical or reproductive effects from consuming carbon nanoparticles in their food. Yet adult Drosophila ...

AGU journal highlights -- Aug. 6, 2009

... this release: Ozone depletion reduces ocean carbon uptake Study pinpoints sources of Earth's "hum" ... 1. Ozone depletion reduces ocean carbon uptake The Southern Ocean plays an important ... change because it acts as a sink of atmospheric carbon dioxide. Most current models predict that the ...

Symposium to discuss geoengineering to fight climate change at the ESA Annual Meeting

... is fertilizing the oceans with iron to increase carbon uptake from the atmosphere. Charles Miller of ... offset a small fraction of the current rate of carbon burning by humans. Ocean fertilization also ... problem of ocean acidification, caused by carbon dioxide from the increasingly carbon-rich ...

Hybrid vehicle rebates produce scant environmental benefits, high cost

... and vans, which produce substantially greater carbon emissions. "If the intention of rebate ... and emissions," says Chandra. "The reductions in carbon emissions are therefore not great." The study ... to $2,000 in 2005, the actual cost of reducing carbon emissions more than doubled," he says, noting ...

Family planning a major environmental impact

... concluded that in the United States, the carbon legacy and greenhouse gas impact of an extra ... The research also makes it clear that potential carbon impacts vary dramatically across countries. The average long-term carbon impact of a child born in the U.S. along with ...

Iron isotopes as a tool in oceanography

... draw vast amounts of the greenhouse gas carbon dioxide down from the atmosphere through the process of photosynthesis. A proportion of the carbon is exported to the deep ocean, making the oceans a major carbon dioxide sink, without which global warming would ...

Humans 'damaging the oceans'

... discussion paper released today. Man-made carbon emissions "are affecting marine biological ... forests and rangelands, for example." Man-made carbon emissions are now above the 'worst case' scenario ... peak of the last Ice Age. At the same time the carbon is acidifying the oceans, with harmful ...

University has grand designs to build a house of straw

... can be grown locally, and because it absorbs carbon dioxide as it grows, buildings made from it can be seen as having zero, or even a negative carbon footprint. Also, due to its high insulating ... helping the UK achieve its targets for reducing carbon emissions. The two storey BaleHaus to be built ...

Nanophysics: Serving up Buckyballs on a silver platter

... out the long-sought structure of a layer of C60 carbon buckyballs on a silver surface. The results, which could help in the design of carbon nanostructure-based electronics are reported in ... Like a soccer ball, the molecule consists of 20 carbon hexagons and ...

DOE-funded research projects win 46 R&D 100 Awards for 2009

... cost by depositing thin films of diamond-like carbon required by next-generation computer hard-disk ... Systems developed this technology. SIMTECHE carbon Dioxide Capture Process This process captures and compresses the greenhouse gas carbon dioxide emitted by fossil fuel power plants and ...

Improved air quality during Beijing Olympics could inform pollution-curbing policies

... equipped with sensitive instruments for detecting carbon particles, including carbon monoxide, carbon dioxide and black carbon, or soot. Among the ...

Carnegie Mellon team makes sequestration recommendations

... sequestration (CCS) technology, which captures carbon dioxide from power plants and safely disposes of ... for CCS projects to obtain the right to inject carbon dioxide into appropriate geological formations ... and legal barriers to large-scale deployment of carbon sequestration. The CCSReg project is supported ...

International conference on CO2 sequestration processes

... WHAT: Turning carbon Dioxide to Stone: Plant Startup, Conference & ... Lamont scientist Juerg Matter, a leader in carbon sequestration research; and top researchers from ... field trip will explore natural sites related to carbon and climate, including glaciers, hot springs, ...

Reveal the enemy

... based on electrochemical measurements by means of carbon nanotubes equipped with aptamers as ... groups, they securely anchored the aptamers to carbon nanotubes, which were deposited onto an electrode ... the aptamers fit closely against the walls of the carbon nanotubes. If the biosensor is put into a ...

Wood stoves -- a viable home heat source?

... of wood from sustainably managed woodlots, as the carbon released is reused as the next generation of ... But while this gross amount did increase, the net carbon released by the combustion is negligible, the ... heat for a household without a net increase in carbon emissions. In the case study, adding a ...

PNNL scientist garners early career presidential award

... buried nuclear or toxic contaminants and storing carbon dioxide from fossil fuels underground. ... practices or help future waste managers store carbon in the subsurface. The models Tartakovksy ... minerals. Similar processes occur when injected carbon dioxide meets what's underground. According to ...

Methane-eating microbes can use iron and manganese oxides to 'breathe'

... play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's ... there were microbes that could convert methane to carbon dioxide without using any sulfur compounds. They ... above the sediment and tested any resulting carbon dioxide produced by the samples. All ...

Ozone, nitrogen change the way rising CO2 affects Earth's water

... have found that future concentrations of carbon dioxide and ozone in the atmosphere and of ... of water that plants give up depends on how much carbon dioxide is present in the atmosphere. Studies ... various future scenarios for the amount of carbon dioxide in the atmosphere and what it would mean ...

Arctic climate under greenhouse conditions in the Late Cretaceous

... is crucial in this regard because levels of carbon dioxide (CO2) were high, driving greenhouse ... diatoms play a dominant role in the 'biological carbon pump' by which carbon dioxide is drawn down from the atmosphere through ...

Explosive growth of life on Earth fueled by early greening of planet

... of published data on thousands of analyses of carbon isotopes found in limestone that formed in the ... rocks, but Knauth said many focused only on the carbon isotopes of Neoproterozoic limestones. Knauth ... are three atoms of oxygen for every atom of carbon in limestone," Knauth says. "We looked at the ...

Forest fire prevention efforts will lessen carbon sequestration, add to greenhouse warming

... another important societal goal of sequestering carbon to help offset global warming, forestry ... ethanol, there would still be a net loss of carbon sequestration in forests of the Coast Range and ... to provide maximal amelioration of atmospheric carbon dioxide over the next 100 years," the study ...

Iron and biological production in the high-latitude North Atlantic

... sequester large amounts of atmospheric carbon dioxide. A proportion of the carbon is exported to the deep ocean, and because carbon dioxide is a greenhouse gas, this so-called ...

Pacific Northwest forests could store more carbon, help address greenhouse issues

... Northwest hold significant potential to increase carbon storage and help mitigate greenhouse gas ... could theoretically almost double their carbon storage. Although it isn't realistic to expect ... by 50 years, their potential to store atmospheric carbon would still increase by 15 percent, the study ...

High carbon dioxide levels cause abnormally large fish ear bones

... Rising carbon dioxide levels in the ocean have been shown to ... in which fish that were exposed to high levels of carbon dioxide experienced abnormally large growth in ... white seabass growing in waters with elevated carbon dioxide would grow more slowly than a comparable ...

Study of agricultural watersheds and carbon losses

... MADISON, WI, JUNE 15, 2009 Dissolved organic carbon (DOC) losses from tile drains are an underquantified portion of the terrestrial carbon cycle. This is particularly important in the ... role in the export of DOC as soluble organic carbon is applied to or injected into the soil surface. ...

When palm trees gave way to spruce trees

... Profound changes were underway. Globally, carbon dioxide levels were falling and the hothouse ... to the understanding of the relationship between carbon dioxide levels and today's climate? An ... in the tropics, largely due to a global drop in carbon dioxide levels in the atmosphere" he said. ...

Global sunscreen won't save corals

... Research Letters *. The culprit is atmospheric carbon dioxide, which even in a cooler globe will ... Cao. Land plants and soils would hold onto more carbon in this scenario, so less would find its way into ... it also slightly slowed the rise in atmospheric carbon dioxide, as ...

University of Leicester geologists demonstrate extent of ancient ice age

... warming was curbed through the burial of organic carbon that eventually lead to the formation of oil ... to the modern ice age, the workings of the carbon cycle appeared markedly different to that of the ... zones' leading to the burial of plankton-derived carbon in the sea floor sediments. The strata produced ...

Broecker: 'What we need are tougher measures against climate change'

... the current state of play, champions options like carbon sequestering, and ventures some new predictions ... a technology still at the experimental stage: carbon sequestration and storage. "The idea is to find a ... an alternative. But we need to set to work now on carbon sequestration. We need to learn how to do it in a ...

Scientists should look at their own carbon footprint

... Arctic need to consider ways to reduce their own carbon footprints, says a researcher who regularly flies ... produce large amounts of carbon. We know that carbon release by human activity is a key contributor to ... six times per year and when he calculated his own carbon footprint, he was not happy with the result. ...

CU-Boulder study shows 53 million-year-old high Arctic mammals wintered in darkness

... of Geology . The team used an analysis of carbon and oxygen isotopes extracted from the fossil ... Eberle said. Telltale isotopic signatures of carbon from enamel layers that form sequentially during ... seasons, Eberle said. "We were able to use carbon signatures preserved in the tooth enamel to show ...

Pediatric carbon monoxide poisoning linked to video games after Hurricane Ike

... found that 75 percent of children treated for carbon monoxide poisoning caused by gasoline-powered ... arriving in the emergency department with carbon monoxide poisoning because they tried to keep ... phones." Of the 37 individuals treated for carbon monoxide poisoning after the storm, 20 were under ...

Spring agricultural fires have large impact on melting Arctic

... or clear brush for grazing - because the black carbon or soot produced by the fires can lead to ... is largely the result of excess accumulation of carbon dioxide, the Arctic is highly sensitive to ... offers a supplemental and parallel strategy to carbon dioxide reductions, with the advantage of a much ...

New book suggests Earth perhaps not such a benevolent mother after all

... clean the environment, for example, or regulate carbon dioxide in the atmosphere. Like Gaia, Medea ... organisms twice plunged Earth into ice ages as carbon dioxide, crucial for photosynthesis, was stripped ... weathering. The weathered elements again stripped carbon dioxide from the atmosphere and plunged the Earth ...

Carbon measuring system to help mitigate climate change

... The $9.16m carbon Benefits Project, which involves the Overseas ... development for poverty alleviation. The carbon Benefits Project is being led and funded by the ... it is hoped to make projects that address carbon impacts more attractive. The system will also ...

Progress toward artificial tissue?

... consists of a robust network of DNA strands and carbon nanotubes. Soft tissues, such as tendons, ... strands completely "wrap" the scaffold-forming carbon nanotubes in the presence of an ionic liquid, ... able to produce a hydrogen peroxide sensor. The carbon nanotubes catalyze the oxidation of hydrogen ...

Biomass as a source of raw materials

... reaction catalyzed by a precious metal on a carbon support combined with an inorganic acid. ... main framework being an aromatic ring made of six carbon atoms with some hydroxy (-OH) groups attached. ... As catalyst, they used palladium metal on a carbon support, with phosphoric acid as the proton ...

Major funding to help cut CO2 emissions

... share in 6.9m of research funding to investigate carbon capture and storage (CCS) technologies which ... projects. CCS is a process that allows carbon dioxide to be captured from power stations and ... right then we can look forward to a secure, low carbon energy future for the UK. "Alongside new ...

New study: Home energy savings are made in the shade

... planted on the west side of a house, can reduce carbon emissions from summertime electricity use by an ... to Butry, who said that trees not only reduce the carbon produced by the local gas or coal-fired power generator, but also remove carbon dioxidea greenhouse gasfrom the atmosphere. ...

Coral 'can't escape the heat'

... inevitable impact on them caused by humanity's carbon emissions. The warning comes from the eminent ... getting to the point where, besides reducing our carbon emissions humanity is probably going to have to find large-scale ways of actually removing carbon from the atmosphere," Prof. McCulloch says. Of ...
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