Sentences with phrase «average emissions because»

The study also showed significant variations by region, with some areas showing higher than average emissions because of large differences in the age and type of pipe in different parts of the US.

Not exact matches

Any pledges to lower emissions by a uniform percentage among industrial countries will be much harder for the U.S. to achieve, simply because it is gaining people so fast through immigration and a birthrate that is higher than average for a developed nation.

But because the photons are released with no preferred direction, the changes in momentum caused by the emission average to zero.

Hybrid and electric cars, which have very high mileage and very low emissions, can also pull up an automaker's overall average for its fleet, although the effect can be small because the vehicles are still a small part of the market.

(The global average is delayed from the Mauna Loa record because most CO2 emissions come from the Northern Hemisphere, and it takes about a year for air from that hemisphere to mix into the Southern Hemisphere.)

There's an under - bias in my numbers due to self consumption at power plants and especially because average emission factors understate emissions from older and smaller (higher heat rate and thus higher emissions) plants that have disproportionately been the ones shut down or not dispatched.

The processes (absorption of light, collisional energy transfer and emission) can be separated because the average time that an isolated CO2 molecule takes before it emits a photon is much longer that the time for collisional de-excitation (~ tens of microseconds at atmospheric pressure, less, higher in the atmosphere).

As Alan points out, the very fast feedback from the full effect of new methane emissions will create larger effects than the averaged numbers indicate, partly because that effect is primarily in the Arctic before mixing has diluted it.

While generators used more natural gas for electricity generation, overall CO2 emissions from natural gas were down because of lower gas heating demand this winter when temperatures were significantly above the historical average for the season.

The Amazon is referred to as a climate tipping point because research shows following a 21st century global average temperature rise most of the Amazon basin may dry out, leading to a massive biome shift — accompanied by many gigatonnes of extra CO2 emissions and almost unimaginable biodiversity loss, placing the cascading Anthropocene Extinction in top gear.

These comparisons can be misleading over the next few decades because the upper boundary of the range covered by subgroup average emissions is significantly lower than the upper boundary of the range of illustrative scenarios.

The uncertainty is so large because ± 4 W m - 2 of annual long wave cloud forcing error is ± 114» larger than the annual average 0.035 Wm - 2 forcing increase of GHG emissions since 1979.

Last year the underlying multi-year average growth rate was higher than ever because the rate of emissions from the burning of coal, oil, and natural gas has experienced a steady upward trend.

«The average global temperature has risen because of the increase in carbon and other greenhouse gas emissions,» they said.

Christy is correct to note that the model average warming trend (0.23 °C / decade for 1978 - 2011) is a bit higher than observations (0.17 °C / decade over the same timeframe), but that is because over the past decade virtually every natural influence on global temperatures has acted in the cooling direction (i.e. an extended solar minimum, rising aerosols emissions, and increased heat storage in the deep oceans).

«This is because the average coal plant in the West has a lower NOx emissions rate at partial output than at full output,» according to NREL.

Climate modelers are scrambling to try to save their creations» reputations because the one thing that they do not want to have to admit is that they exaggerate the amount that the earth's average temperature will increase as a result of human greenhouse gas emissions.

If the world as a whole cut all emissions tomorrow the average temperature of the planet is not going to drop in several hundred years, perhaps as much as a thousand years because the system is overburdened with CO2 that has to be absorbed and that only happens slowly.

org, US reductions need to be much greater than average reduction levels required of the entire world as a matter of equity because the United States emissions are among the world's highest in terms of per capita and historical emissions and there is precious little atmospheric space remaining for additional ghg emissions if the world is serious about avoiding dangerous climate change.

By 2050, according to their computer models, Central Africa will be on average 1.4 °C hotter than it is today just because of greenhouse gas emissions.

«That [CO2 being well mixed in the atmosphere] is a good thing because it means that local values are good approximations of the global average, which in turn provides a record of net global emissions.

NRDC Response # 1: «In fact, because money - saving energy efficiency is a central strategy under EPA's emissions reduction plan, EPA projects that the average American household's electric bill will go down, not up.

The Earth is warmer (in an average sense) now than it has been at any time during the past 2000 years because of CO2 emissions from humans burning fossil fuels.

Rushing to Home Depot to buy light bulbs is counter-productive because malls are a bigger source of emissions than the average household's light bulbs, not to speak of the cars that people use to get to malls.

Anonymous Coward wrote: «Rushing to Home Depot to buy light bulbs is counter-productive because malls are a bigger source of emissions than the average household's light bulbs, not to speak of the cars that people use to get to malls.

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.

This wouldn't affect the average height of emission, because in these bands there would be zero emission (and zero absorption from the surface).

So while advanced diesel engines with strict emission controls could help reduce greenhouse gas emissions without contributing too much more than gasoline to air pollution (this would still need work), they might soon be a hard sell to the average person because they won't be financially competitive with gasoline engines anymore.

«It doesn't seem much because per capita emission for the world right now is approximately 2 tons average,» said Siddharth Pathak, a leading Indian campaigner for Greenpeace.