Sentences with phrase «soot produced»

The world must burn less diesel and wood, Nobel peace prize - winner Al Gore said yesterday, as the soot produced is accelerating the melting of ice in polar and mountainous regions.
Alternative, more indirect, but not for that reason ultimately not effective approaches must be developed, including «demonstration» projects which show that people working together an have a positive effect on certain contributors to warming, including black soot produced by millions of stoves that use dung for fuel.
The researchers incorporated information on soot produced by burning fossil fuels, wood and other biofuels, along with that naturally produced by forest fires and then checked their model predictions against global measurements of soot levels in polar snow from Sweden to Alaska to Russia and in Antarctica as well as in nonpolar areas such as the Tibetan Plateau.
The soot produced by each type of burning has a different makeup.
The soot produced by burning fossil fuels has a stronger warming effect because it contains a higher ratio of black carbon to sulfate, which reflects sunlight to produce a cooling effect.
In contrast, soot produced by burning biofuels is often a product of dung - or wood - powered cookstoves used indoors and in densely populated areas.

Not exact matches

Burning scented candles produces soot, which can get trapped inside your baby's nostrils.
There are the usual suspects — excess carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen oxides, soot, and lead produced by human activity.
The study also found a comprehensive climate policy (including methane) would produce more climate benefits by 2050 than if soot and methane were reduced alone.
The research found that cutting soot and methane as described above produced an average temperature reduction of 0.16 degrees Celsius by 2050, which is substantially less than the 0.5 - degree reduction found in earlier studies.
Cutting the black carbon, or soot, produced by burning fossil fuels, vegetation, dung and other sources could reduce global warming
The optical setup was developed to quantify soot formation in high - pressure spray flames produced in Sandia's optically accessible, constant volume, pre-burn combustion chamber.
This is because the candle produces soot from its wax that is made up of carbon and hydrogen.
So the original 6 pounds of carbon combine with 15 or 16 pounds of oxygen, minus some soot, water, and other by - products, and, bingo, by driving 21 miles down the road, my car has just disturbed the balance of the planet's carbon cycle by producing 19 pounds of CO2.
Moreover, the blending of soot and sulfate in the atmosphere produces new particles that have an even greater capacity to absorb sunlight.
Forest fires produced much of the Arctic soot before 1850, but between the late 1880s and 1950, industrial black carbon pollution predominated.
Current research methods such as ice - core drilling can produce high - quality records of aerosols and soot going back centuries and even millennia, he says, and «these written accounts provide a good complement» to the data.
Continuing widespread use of coal and low - grade diesel fuel, which also produce fine particles of soot, leaves China's record as the world's largest single source of man - made greenhouse gas emissions unchallenged.
A thick cloud of soot covers most of India, produced in part by millions of small cooking stoves, which typically burn wood.
Over the past decade, scientists have linked soot and other tiny particles produced by combustion to heart attacks, asthma, and lung cancer, spurring a clampdown on fine particle pollution by the U.S. Environmental Protection Agency.
This technique verified also that fullerenes are produced in similar amounts in the soots of common flames under ambient atmospheric conditions.
However, if there is not enough oxygen relative to the diesel fuel, the engine produces soot.
The jist of this is that we must NOT suddenly switch off carbon / sulphur producing industries over the planet but instead we must first dramatically reduce CO2 emissions from every conceivable source, then gradually tackle coal / fossil fuel sources to smoothly remove the soot from the air to prevent a sudden leap in average global temps which if it is indeed 2.75 C as the UNEP predicts will permanently destroy the climates ability to regulate itself and lead to catastrophic changes on the land and sea.
The results, said co-author and PNNL laboratory fellow Ruby Leung, «strongly suggest that increasing aerosol concentrations (particles, mainly soot and sulfur, that pollute the air) in the past has produced a fog - like haze that has reduced solar radiation (surface heat from sunshine), despite more frequent clear days that should lead to increased solar radiation.»
Beyond the rapidly decreasing fossil energy, its misuse e.g. in the worn diesel engines produce (mainly in the developing countries) million tons of very fine soot, which, by inhalation, may cause lung cancer.
A wick made of cherry wood and natural soy wax means this guy doesn't produce any soot.
«Too large a wick for the vessel will cause the container to get really hot and produce heavy amounts of soot and residue.
So if you notice your candle is producing soot or leaking wax, it may be the size of your wick.
They also burn slower and cooler (helping to better distribute fragrance), are non-toxic, less likely to trigger allergies, clean up with soap and water, and produce very little soot.
The Zafira and Combo CNG (Compressed Natural Gas) produce almost no soot particles, 20 percent less carbon dioxide than a comparable gasoline model and an up to 80 percent reduction in other harmful emissions.
Also due to the low compression ratio, the SKYACTIV - D diesel engine also burns cleaner, discharging far fewer nitrous oxides while producing virtually no soot.
THe Cruze produces less smoke and soot, too.
The new Leon has been fitted with a DPF particulate filter as standard equipment, filtering the typical (but small amount of) soot particles that most diesel engines produce.
A digital catalog was produced for «Silt, Soot, Smut,» Alison Saar's recent exhibition at L.A. Louver.
For the innovative work she produced in the 1960s — large - scale abstract relief sculptures made of welded steel, canvas, wire and soot — Lee Bontecou has earned a very lofty position in the canon of post-war American art history.
[2] A major occurrence that truly directed her career as an artist was her discovery of the way in which a torch for welding could produce an easily - controlled spray of the black soot that became a signature material in her work.
Anirudh Sharma is the founder of Graviky Labs and, working with a team of fellow inventors, produced a series of gadgets that attach to pollution emitters, like tailpipes, to capture raw carbon and soot.
It's good old fashioned black carbon soot — a visible pollutant with measurable effects on human health both in poor places, where it comes from cooking or heating using coal, firewood or dung, and rich countries, where it is produced mainly through the combustion of diesel and similar fuels and from some industries.
A doctoral student and researcher at the Technische Universiteit Eindhoven has created a new type of diesel fuel that produces significantly less soot than conventional diesel.
(Paper abstract) Soot from ships worse than expected Produced during combustion of fossil fuels and biofuels, light - absorbing carbon (soot) creates haze and absorbs light with an efficiency nearly one third that of carbon dioxSoot from ships worse than expected Produced during combustion of fossil fuels and biofuels, light - absorbing carbon (soot) creates haze and absorbs light with an efficiency nearly one third that of carbon dioxsoot) creates haze and absorbs light with an efficiency nearly one third that of carbon dioxide.
Sure, burning methane (biogas) produces a lot of CO2, but coal produces a lot of CO2 and soot!
They burn extremely dirty fuel and produce vast quantities of soot and particulate matter.
This occurs because transportation in North America produces a substantial amount of black carbon (soot) and ozone (a main ingredient in smog), both of which warm climate, while power generation leads to a large amount of sulfate particles, which cool climate even as they also lead to acid rain and damage human health.
He concluded that soot is currently the No. 2 driver of climate change â $» behind CO2 but ahead of methane â $» and that curbing emissions of black carbon would produce the fastest, most effective and most affordable international response to climate change and the shrinking of the Arctic sea ice.
However, inefficient combustion of wood, coal and diesel tends to produce dark carbonaceous material (black carbon, or soot) that also absorbs radiation and warms the atmosphere.
Image at right: Natural and anthropogenic biomass burning, such as forest fires and the burning of fields in the tropics, produce black carbon aerosols, i.e., soot.
We know the vast amount of coal burned by China to produce manufactured goods (that could have been produced user cleaner energy if not for Kyoto) produces huge amounts of carbon soot that can change the albedo.
If it comes from coal, the electric cars produce 3.6 times more soot and smog deaths than gas, because of the pollution made in generating the electricity, according to the study that is published Monday by the Proceedings of the National Academy of Sciences.
Two kinds of BC are produced in combustion processes through different formation pathways: char is an impure form of graphitic carbon from combustion residue formed directly by pyrolysis in smoldering fires, while soot is a combustion condensate produced by gas - to - particle conversion at relatively high temperatures (> 600 °C) in flame.
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