Posts Tagged ‘dioxide’

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A bacterium that eats electricity to convert CO2 into methane

London, April 6 (ANI): A team of scientists has discovered a new bacterium that feeds on electricity and uses it to convert carbon dioxide (CO2) into methane, which could then be stored and burned when needed. According to a report in New Scientist, Bruce Logan's team at Pennsylvania State University in University Park discovered the bacterium. When living on the cathode of an electrolytic cell, the organism ... Full story

CO2 in underground water may bring carbon capture and storage a step closer

Washington, April 2 (ANI): A new research has shown that for millions of years carbon dioxide (CO2) has been stored safely and naturally in underground water in gas fields saturated with the greenhouse gas, a finding that brings carbon capture and storage a step closer. Some models predict that CO2 would react with rock minerals to form new carbonate minerals, while others suggest that ... Full story

Light-activated antibacterial coating may help fight hospital-acquired infections

Washington, Mar 31 (ANI): Scientists at the UCL Eastman Dental Institute have developed a new tool to combat hospital-acquired infections- antibacterial coating that is activated by light. The research team, led by Zoie Aiken, have tested the new coating with antibacterial properties, and found that it could kill 99.9 percent of Escherichia coli bacteria when a white hospital light was shone on its surface to activate ... Full story

Scientists identify microbe that turns (CO2) and water directly to methane

Washington, March 31 (ANI): In a new research, a team of Penn State engineers has identified a tiny microbe that can take electricity and directly convert carbon dioxide (CO2) and water to methane, producing a portable energy source with a potentially neutral carbon footprint. "We were studying making hydrogen in microbial electrolysis cells and we ... Full story

Fish oils can reduce greenhouse gas emissions from cows

Washington, March 30 (ANI): In a new study, researchers from University College Dublin have achieved a reduction in the amount of methane released by cattle, by including 2 percent fish oil in the diet of the animals. The benefits to animals of omega 3 fatty acids in fish oils have been well documented - helping the heart and circulatory system, improving meat quality and reducing methane ... Full story

Clear sky visibility over land has decreased globally over past 30 years

Washington, March 13 (ANI): A new research has shown that as a result of increases in aerosols, or airborne pollution, clear sky visibility over land has decreased globally over the past 30 years, turning gray skies to blue. The research, by a University of Maryland-led team, has compiled the first decades-long database of aerosol measurements over land, making possible new research into how air pollution changes ... Full story

Climate change reduces nutritional value of algae

Amsterdam, March 12 (ANI): A new study has determined that due to climate change, the composition of algae is changing, as a result of which their nutritional value for other aquatic life is decreasing. This is the conclusion of researchers from the Netherlands Institute for Ecology (NIOO-KNAW) and the Universiteit van Amsterdam. The researchers wanted to know whether an increased CO2 (carbon dioxide) concentration exerted an ... Full story

Termite killer looms as potent greenhouse gas

Washington, March 11 (ANI): A new study has indicated that fumigant pumped into tented houses to kill pests remains in atmosphere six to 10 times longer than previously thought, thus becoming a potent greenhouse gas. The study was conducted by a research team led by Jens Muhle, an atmospheric chemist ... Full story

Coral reefs may start dissolving when CO2 doubles

Washington, March 10 (ANI): In a new study, scientists have determined that if carbon dioxide (CO2) reaches double pre-industrial levels, coral reefs can be expected to not just stop growing, but also to begin dissolving all over the world. The study, by researchers at the Carnegie Institution and the ... Full story

Geologists map rocks to soak CO2 from air

Washington, March 6 (ANI): In a new report, geologists have mapped large rock formations in the United States that can also absorb carbon dioxide (CO2), which they say might be artificially harnessed to do the task at a vastly increased pace. The report, by scientists at Columbia University's Earth Institute ... Full story

Earth’s highest known microbial ecosystems being fueled by volcanic gases

Washington, March 4 (ANI): A new study has shown that the emission of water, carbon dioxide (CO2) and methane from small volcanic vents near the rim of the 19,850-foot-high Socompa volcano in the Andes Mountains, is helping to sustain complex microbial ecosystems. The study, by ... Full story

Swampy expansion spurred “Little Ice Age” in 17th century

Washington, March 3 (ANI): A new study has indicated that a vast expansion of swampy wetlands across North America may have invoked the "Little Ice Age," a two-centuries-long cold snap that gripped the northern hemisphere starting in the 1620's. Scientists have argued for years over what caused the planet to abruptly cool during this time, invoking everything from volcanic eruptions to reduced solar activity to a ... Full story

Mudslides following Chinese quake may cause CO2 release in upcoming decades

Washington, March 3 (ANI): A new study has shown that mudslides that followed the earthquake that struck China on May 12 last year, may cause a carbon-dioxide (CO2) release in upcoming decades equivalent to two percent of current annual global carbon emissions from fossil fuel combustion. The magnitude-7.9 Wenchuan quake was followed by many aftershocks in the Sichuan Basin, an area that, because of its geological ... Full story

Scientists use the sun to convert CO2 into high-energy fuel

Washington, Feb 28 (ANI): A team of scientists at Penn State University has come up with an ingenious method of turning captured CO2 into methane, a combustible fuel, using the energy of the sun. The team, led by Craig Grimes, described a highly efficient photocatalyst ... Full story

Commercial ships emit half as much particulate pollution as world’s cars

Washington, Feb 27 (ANI): A new study has determined that commercial ships in the world emit almost half as much particulate pollution into the air as the total amount released by cars. The study is the first to provide a global estimate of maritime ... Full story

NASA satellite to pinpoint sources and sinks of world’s CO2

London, Feb 24 (ANI): NASA's new climate-monitoring satellite, the Orbiting Carbon Observatory (OCO), which would pinpoint sources and sinks of carbon dioxide (CO2), will blast off today from California's Vandenberg Air Force Base. According to a report in New Scientist, with the help of the satellite, scientists will be one step closer to understanding how some CO2 ends up building a dangerous greenhouse above our heads, ... Full story

Cracks in Earth may contribute to global warming

Washington, Feb 20 (ANI): A new study has found that the cracks in Earth's surface exhale large quantities of gas, perhaps enough to contribute to global warming. According to a report in Discovery News, Noam Weisbrod of Ben Gurion University of the Negev and a team of researchers monitored a crack ... Full story

Alien atmosphere helped unfreeze ancient Earth

Washington, Jan 14 (ANI): Analysis of the chemical composition of 635-million-year-old rocks from the Norwegian island chain of Svalbard has revealed oxygen trapped inside the rocks, which suggests ancient Earth once had an alien atmosphere that might have helped melt millions of years' worth of deep freeze. According to a report in National Geographic News, the analysis shows a surprisingly low amount of a particular type, ... Full story

Venus may have had continents and oceans in its ancient past

London, Jan 14 (ANI): In a new research, scientists have claimed to detect evidence for granite highlands on Venus in data almost two decades old, which suggests that the planet may have once been far more like Earth, with oceans and continents. According to a report in Nature News, the data includes nighttime infrared emissions coming from the surface of Venus, which was detected by NASA's ... Full story

Hybrid vehicles could reduce cities’ CO2 emissions significantly by 2050

Washington, Feb 12 (ANI): A new study has shown that "smart growth", combined with the use of hybrid vehicle technology, could reduce cities' carbon dioxide (CO2) emissions significantly by 2050. According to Brian Stone, associate professor of City and Regional Planning, the research shows that expected levels of CO2 emissions from cars and trucks in 2050 could be reduced back to 2000 levels if the ... Full story
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