Sentences with phrase «dioxide emission factors»

In general, the carbon dioxide emission factors are lowest for coal produced in States east of the Mississippi River (Figure FE1), where the predominant coals are bituminous in rank and therefore have relatively low emission factors.

The carbon dioxide emission factors in this article are expressed in terms of the energy content of coal as pounds of carbon dioxide per million Btu.

All of EIA's carbon dioxide emission factors for coal by rank and State of origin should be considered as «fixed» for the foreseeable future.

EIA's carbon dioxide emission factors were derived from data in the EIA Coal Analysis File, one of the most comprehensive data sources on U.S. coal quality by coalbed and coal - producing county.

From the more than 60,000 coal samples in the File, 5,426 were identified as containing data on heat value and the ultimate analysis (6) needed for developing the relationship between carbon and heat content of the coal, that is, the carbon dioxide emission factors.

Because lower rank coals have relatively high carbon dioxide emission factors, increased use of these coals caused the national average carbon dioxide emission factor to rise from 206.5 pounds per million Btu in 1980 to 207.6 pounds per million Btu in 1992.

The statistical analyses (Table FE3) indicated that: (1) there are statistically significant differences in carbon dioxide emission factors across both coal rank and State of origin; (2) coal rank and State of origin each explain approximately 80 percent of the variation in carbon dioxide emission factors; and (3) State of origin combined with coal rank is a slightly more powerful explanatory variable than either coal rank or State of origin alone.

EIA's carbon dioxide emission factors by consuming sector and State will be updated periodically to reflect changes in the mix of U.S. coal consumption.

The high carbon dioxide emission factor for anthracite reflects the coal's relatively small hydrogen content, which lowers its heating value.

The carbon dioxide emission factor was assumed to be a linear function of the parameters associated with the coal rank and State of origin.

Not exact matches

Studies indicate carbon dioxide emissions from transportation in the province have declined 16 % in that time, and while it's impossible to draw a direct causal relationship between the tax and the emissions decline, it's fair to say it was a factor contributing to indisputable behavioural changes — you can't emit 16 % less CO2 by doing the same things you did before.

Combining the generation data, project location, and eGRID emissions factor, NEC estimated the amount of carbon dioxide, methane, and nitrous oxide (measured together as metric tons of CO2 Eq.)

The UK will be the deciding factor in an EU debate on carbon dioxide emissions standards for new cars tomorrow, with green groups calling on the government to hold firm.

Emissions of carbon dioxide are changing the climate and natural factors like clouds may not help

Current, sulfur dioxide monitoring activities include the use of emission inventories that are derived from ground - based measurements and factors, such as fuel usage.

Other factors come into play: Increasing carbon dioxide emissions worldwide are making all oceans more acidic, forcing species to use more energy to adapt, leaving them with less energy to reproduce and grow.

It produces no carbon dioxide exhaust emissions, and even when the CO2 released in generating the electricity used to charge its batteries is factored in, it is responsible for less than half the amount emitted by the «greenest» petrol cars.

Some prior research has suggested that carbon dioxide emissions from all lakes on Earth are less than what was found in the Arctic, and future factors could shift the importance of sunlight, noted Lars Tranvik, a Swedish scientist, in an accompanying Science article.

Barthelemy says the model could also come in handy for estimating traffic delays, gas consumption and carbon dioxide emissions, so that urban planners and policy makers can better understand how those different factors evolve as a city grows.

Although carbon dioxide accounts for the vast majority of greenhouse gas emissions from human activities, methane emissions are also an important factor driving climate change.

«(I) The Administrator shall determine the amount of fossil fuel - based electricity delivered at retail by each electricity local distribution company, and shall use appropriate emission factors to calculate carbon dioxide emissions associated with the generation of such electricity.

The Summary for Policymakers states that taking into account additional warming factors, the amount of carbon that can be released through carbon dioxide emissions — in total — comes down to about 800 billion tonnes.

The 2015 edition of the EPA's annual report «Light - Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends» estimates the following utility factors for 2015 model year plug - in hybrids to represent the percentage of miles that will be driven using electricity by an average driver, whether in electric only or blended modes: 83 % for the BMW i3 REx, 66 % for the Chevrolet Volt, 45 % for the Ford Energi models, 43 % for the McLaren P1, 37 % for the BMW i8, and 29 % for the Toyota Prius PHV.

Agree with Mr. Richards (31) that a «budget» for 1.5 C has already been exceeded — due e.g. to «thermal response factor» (Hansen), present aerosol dimming, further emissions during energy transition, unfolding climate feedbacks and planetary response to actual total carbon dioxide eguivalent.

Coal is the prime factor determining the pace of growth in emissions of heat - trapping carbon dioxide as human populations and appetites crest in the next few decades.

Soils are the largest single terrestrial source of carbon dioxide (CO2), but these emissions are highly sensitive to a range of factors associated with climate change and human land use (1).

Coal Blooded analyzes sulfur dioxide (SO2) and Nitrogen Oxide (NOx) emissions in conjunction with demographic factors — race, income, and population density — to rank the environmental justice performance of the nation's 378 coal fired power plants.

In response, the IPCC added a cooling factor to its models of the atmosphere, consisting of tiny aerosol particles produced by the emission of sulfur dioxide from electric power plants.

The electricity emissions intensity factor for the entity, expressed in tons of carbon dioxide equivalents per kilowatt hour, is determined by dividing --

... the Intergovernmental Panel on Climate Change, which includes more than 3,000 scientists from around the world, agrees that climate change is caused by a number of factors, including excess carbon dioxide... The Government of Alberta accepts the findings of the Intergovernmental Panel on Climate Change and recognizes the need to reduce emissions and take immediate action to deal with the impacts of global warming.

Failure to consider these factors at planning stage will more than likely lead to increases in terms of energy use, carbon dioxide emissions, construction costs, and risk of dangerous summer overheating.

System value is determined by a variety of factors, including reduced fuel costs, reduced carbon dioxide and other pollutant emissions costs, or higher costs of additional grid infrastructure.

When equipment procurement and other supply factors are taken into account, hospitals alone account for approximately 5 % of the EU's carbon dioxide emissions, says the HCWH.

The answer is that CO2 is only one of several factors that influence temperature, such as volcanic eruptions, solar variability, sulfur dioxide emissions (see Figure 1), and small changes in the earth's orbit.

It seems to me that would suggest temperatures are the causal factor and not carbon dioxide emissions.

Curry also notes there's evidence the Earth has been warming for the past 200 years — a period that began before human carbon dioxide emissions would have been a factor.

The impact of social factors and consumer behavior on carbon dioxide emissions in the United Kingdom

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.

West of the Mississippi River, the emission factors for bituminous coal range from more than 201 pounds of carbon dioxide per million Btu in Missouri, Iowa, and Nevada to more than 209 in Arizona, Arkansas, and Montana.

Second are emission factors for use in estimating carbon dioxide emissions from coal consumption by State, with consuming - sector detail.

EIA's emission factors will not only enable coal - generated carbon dioxide emissions to be estimated more accurately than before, but they will also provide consistency in estimates.

EIA's emission factors will improve the accuracy of estimates of carbon dioxide emissions, especially at State and regional levels, because they reflect the difference in the ratio of carbon to heat content by rank of coal and State of origin.

While methane and nitrous oxide make up much smaller portions of total greenhouse gas emissions, these gases are still important factors in the climate crisis, in part because they each have stronger global warming effects than carbon dioxide and also because they constitute an increasing portion of total emissions.

The emission factors for coal consumption involving combustion are based on the assumption that all of the carbon in coal is converted to carbon dioxide during combustion.

The emission factor for lignite from the Gulf Coast Coal Region in Texas, Louisiana, and Arkansas is 213.5 pounds of carbon dioxide per million Btu.

2Examples of previously published emission factors include, in pounds of carbon dioxide per million Btu, single emission factors of 205.7 in «United States Emissions of Carbon Dioxide to the Earth's Atmosphere,» Energy Systems Policdioxide per million Btu, single emission factors of 205.7 in «United States Emissions of Carbon Dioxide to the Earth's Atmosphere,» Energy Systems PolicDioxide to the Earth's Atmosphere,» Energy Systems Policy, Vol.

When the total energy in Btu from coal consumption by State is known (with no breakdown by coal - consuming sector), the State average emission factors can be used to estimate the total amount of carbon dioxide emissions by State.

For carbon dioxide, the policy impact will need to increase by a factor of almost five, as future emissions reductions are likely to rely more heavily on this gas.

(1) Because of a growing concern over the possible consequences of global warming, which may be caused in part by increases in atmospheric carbon dioxide (a major greenhouse gas), and also because of the need for accurate estimates of carbon dioxide emissions, the Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted as a result of U.S. coal consumption.

However, there are fears that, due to factors like worsening wildfires or carbon dioxide emissions from Arctic permafrost, this could change in the future, causing even more global warming gases to flow from the land to the atmosphere.