Sentences with phrase «emitted by combustion»
The achievement could be revolutionary, enabling creation of a closed system in which carbon dioxide emitted by combustion was transformed back into fuel instead of adding to the greenhouse gases in the atmosphere.
https://www.scientificamerican.com/ Not exact matches
Another study, published last year in Reviews of Geophysics, lists the man - made aerosols as coming from sulfates, nitrate and black carbon emitted by internal combustion engines, coal - fired power plants, slash - and - burn agricultural practices, and smoke from cooking.
Black carbon is an aerosol emitted by incomplete combustion from vehicles and factories.
«There you have actual combustion occurring — so instead of just having light being reflected by all these particles, you actually have light being emitted by particles,» Ebert says.
Human - generated aerosols can enter the atmosphere directly, as is the case with soot emitted by internal combustion engines in cars and trucks, he explains.
-- Where carbon dioxide (or another greenhouse gas) generated by a covered entity is used as an input in the production of algae - based fuels, the Administrator shall ensure that emission allowances are required to be held either for the carbon dioxide generated by a covered entity that is used to grow the algae or for the portion of the carbon dioxide emitted from combustion of the fuel produced from such algae that is attributable to carbon dioxide generated by a covered entity, but not for both.
Third, the recent paper by Samset et al in GRL found that the loss of the cooling anthropogenic aerosols (primarily sulphates) emitted with fossil fuels combustion (mostly from coal and bunker fuels) would result in a near real - time warming of 0.5 C to 1.1 C.
Transport emissions would be tackled by requiring refineries and importers of petroleum to hold allowances for each ton of carbon dioxide that would be emitted in the combustion of their products.
In fact, after 2050, Hansen's pathway (which, again, we used as the basis of our own) assumes that enhanced sinks will draw more CO2 out of the atmosphere than is emitted by fossil fuel combustion or deforestation, yielding a net budget of about negative 150 gigatonnes of CO2 over the second half of the 21st century.
-- Where carbon dioxide (or another greenhouse gas) generated by a covered entity is used as an input in the production of algae - based fuels, the Administrator shall ensure that emission allowances are required to be held either for the carbon dioxide generated by a covered entity that is used to grow the algae or for the portion of the carbon dioxide emitted from combustion of the fuel produced from such algae that is attributable to carbon dioxide generated by a covered entity, but not for both.
Comparing the full lifecycle emissions of greenhouse gases by the two fuels from production through combustion in cars, Eric Johnson, editor of Environmental Impact Assessment Review, and Russell Heinen, Vice President of SRI Consulting, found that «biodiesel derived from rapeseed grown on dedicated farmland emits nearly the same amount of greenhouse gas emissions (defined as CO2 equivalents) per km driven as does conventional diesel.»
JB, I've just shown that the 30,000 Watts of constant heat output from combustion by a light car completely gazumps the miniscule 0.2 W.m @ of re-emitted energy from 168 gms of CO2 emitted from the car over a kilometre.
1:00 - 2:30 p.m. EST (An Interactive Audio and Web - Based Seminar Hosted by Infocast) The Basics Seth D. Hilton Stoel Rives LLP 111 Sutter / CO2 emission from average combustion levels New Generation — Geothermal Geothermal emits some CO2 mostly in condensate evaporation in the cooling cycle Levels / states or countries with capped emissions Repowering existing electric generation facilities New clean energy sources Potential Opportunities for Entities Subject to California's Emission Reduction Requirements /
An internal combustion engine (ICE) vehicle will emit roughly the same level of carbon - emissions - per - mile throughout its many decades of life; the only chance for improvement is when it finally wears out and is replaced by a new car.
But these 139 nations account for perhaps 99 % of all the carbon dioxide emitted by human combustion of fossil fuels.
¶ ¶ 38 («when used -LSB-,]... fossil fuels release greenhouse gases), 39 («use of fossil fuels emits carbon dioxide»), 45 («emissions resulting from human activities are substantially increasing... greenhouse gases»), 48 («increase in atmospheric carbon dioxide caused by the combustion of fossil fuels»), 52 («fossil fuels -LSB-,]... when combusted, emit carbon dioxide»).
The (arithmetic) average emission factors obtained from the individual samples (assuming complete combustion)(Table FE4)(10) confirm the long - recognized finding that anthracite emits the largest amount of carbon dioxide per million Btu, followed by lignite, subbituminous coal, and bituminous coal.
Fossil fuel combustion at power plants emits other pollutants regulated by the Clean Air Act.
Black carbon (sooty particles) and methane emitted by inefficient stove combustion are powerful climate change pollutants.