Sentences with phrase «about emission factors»

Not exact matches

And then you look at a place like China, which is just now — despite it's phenomenal growth in recent decades at 9 or 10 percent per year — is just now reaching about the per capita world average on all those factors, energy consumption, wealth and CO2 emissions, and they clearly want to do more.

«In our study, income appears to explain much of the variation in the regional factors, so essentially if we know how income changes over time, we can hypothesize about how emissions would follow.»

About a third of the factors used to estimate pipeline leaks and other natural gas emissions in the most recent inventory, for 2015, are based on a 1996 study by the EPA and an industry group then known as the Gas Research Institute.

«They use default emissions factors for various types of coals, they have to use various efficiency rates and things like that, and slight tweaks in those has huge impacts when you're talking about hundreds of millions of credits.»

«To mitigate the effects of climate change, we can talk about two types of options: to attack it at its origin, by eliminating or reducing the human factors that contribute to it (such as, reducing emissions, controlling pollution, etc.) or developing strategies that allow for its effects to be reduced, such as, in the case that concerns us, increasing green areas in cities, using, for example, the tops of buildings as green roofs,» states the University of Seville researcher, Luis Pérez Urrestarazu.

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.

And finally, what about Mark's questions (# 3) and other factors not discussed here — do all these effects re Arctic ice lead scientists to believe there is a greater and / or earlier chance (assuming we continue increasing our GHG emissions — business as usual) of melting hydrates and permafrost releasing vast stores of methane into the atmosphere than scientists believed before the study, or is the assessment of this about the same, or scientists are not sure if this study indicates a greater / lesser / same chance of this?

It is shown that if global methane emissions were to increase by factors of 2.5 and 5.2 above current emissions, the indirect contributions to RF would be about 250 % and 400 %, respectively, of the RF that can be attributed to directly emitted methane alone.

Factor in the «carbon light» CO2 from coal seam gas projects in the East (and other LNG expansion in the north and west) and you're talking about Australia's fossil fuel emission exports equating to TWO Saudi Arabias by 2020, not one as I've been saying to many disbelieving ears.

Scaling Walter's Arctic lake emission rates up by a factor of 100 would increase the overall emission rate, natural and anthropogenic, by about a factor of 5 from where it is today.

And, that just coincidently, the rate of the rise has consistently been (when averaged over a few year period to smooth out variability due to seasonal cycles and other factors) equal to about half of the emissions of CO2 that we are putting into the atmosphere?

And finally, what about Mark's questions (# 3) and other factors not discussed here — do all these effects re Arctic ice lead scientists to believe there is a greater and / or earlier chance (assuming we continue increasing our GHG emissions — business as usual) of melting hydrates and permafrost releasing vast stores of methane into the atmosphere than scientists believed before the study, or is the assessment of this about the same, or scientists are not sure if this study indicates a greater / lesser / same chance of this?

While the greenhouse gas footprint of the production of other foods, compared to sources such as livestock, is highly dependent on a number of factors, production of livestock currently accounts for about 30 % of the U.S. total emissions of methane.316, 320,325,326 This amount of methane can be reduced somewhat by recovery methods such as the use of biogas digesters, but future changes in dietary practices, including those motivated by considerations other than climate change mitigation, could also have an effect on the amount of methane emitted to the atmosphere.327

Jon Norman, president and COO of bulk energy storage firm Hydrostor, said technology change and the dropping costs of renewable power are crucial factors driving the global shift to non-emitting resources, in addition to concerns about carbon emissions.

For each category of emissions, an RCP contains a set of starting values and the estimated emissions up to 2100, based on assumptions about economic activity, energy sources, population growth and other socio - economic factors.

Although many people have accepted with half - believing and half - doubting the view that the emission of greenhouse gases is the primary factors in global climate change, many scientists are skeptical about this view, they have refuted this view with plenty of evidence.»

4) As there are too many parameters and fudge factors lets start from the observations which are only four datasets: (1) Anthropic emissions (figure 17 - E), (2) their time varying delta13C (not shown), (3) CO2 content of the air (since 1958)(figure 4 - A for the 12 months increments) and (4) delta13C of the air (continuous times series since about 1977 with some measurements before figure 3 - A).

However, because of issues related to data quality, the low frequency of extreme event impacts, limited length of the time series, and various societal factors present in the disaster loss record, it is still not possible to determine the portion of the increase in damages that might be attributed to climate change brought about by greenhouse gas emissions (S1).

Current official inventories of methane emissions, a potent greenhouse gas released from landfills, livestock ranches and oil and gas facilities, may be underestimated both nationally and in California by a factor of about 1.5, according to new research from Berkeley Lab and others.

What gets me is that from 1910 to about 1940 we saw nearly identical temperature increase over nearly an identical span of time at a point when human CO2 emissions could not possibly have been a factor.

would increase Arctic CH4 emissions by about a factor of 25, and would make the present - day permafrost area about two times more productive of CH4 on average as comes from wetlands today.

And then I multiplied that by factors of 2, 2.5, and 10/6, to get a rough sense of how much emission of C that could correspond to (this entails some assumptions about airborne fraction on my part.

You aren't thinking about the warming period early last century, because we know it was a relatively brief period, and so lacked huge significance, and was caused by a combination of CO2 emissions, high solar activity and low volcanic activity and the later two factors haven't been apparent since the 1970's modern warming period.

To improve those emissions, the dimensions of the microstructures would have to shrink by a factor of 15, until the rods were only about 1,000 atoms wide.

Such considerations can also be factors for socially responsible investors who are concerned about increased carbon emissions in the U.S. Investors, with more than $ 3 trillion in assets and who use an environmental, social and governance criteria, have been effective at encouraging companies to consider environmental consequences in their business decisions.

While Christy only considered the possibility that climate models are wrong, Taylor considered three possibilities: (1) the surface temperature record is biased high, (2) a factor other than human greenhouse gas emissions is causing global warming, or (3) the «assumptions about greenhouse gas theory are wrong.»