Sentences with phrase «short atmospheric lifetime»

Given the short atmospheric lifetime of some warming agents, temperatures in the longer term will be little affected by mitigation action of these agents in this decade, although mitigation could slow the current rate of warming.

Because of its short atmospheric lifetime, the scientists suggested that reducing soot could provide a quick, effective way to slow global warming in the short - term.

[10] In particular, methane has a short atmospheric lifetime, whereas N2O and many F - gases have lifetimes comparable to CO2 or longer.

Certainly, CO2 and other anthropogenic GHG emissions are a potent driver of warming, with water serving in a feedback role due to its short atmospheric lifetime.

1) Due to the short atmospheric lifetime of tropospheric sulfates, if their cooling effect was so large we would observe cooling or, at the very least, less warming over the emitting areas and downwind from them, especially China and some Eastern European regions.

Aerosols, with their short atmospheric lifetime, and highly variable geographic distribution, are difficult to observe quantitatively from space with currently available satellite instrumentation which only measure the spectral intensity of reflected solar radiation.

Unlike CFCs and similar long - lived gases that are responsible for most ozone depletion, dichloromethane has a short atmospheric lifetime so has not been controlled by the Montreal Protocol.

They were, therefore, taken off the market a few years later and themselves replaced with compounds that had much shorter atmospheric lifetimes.

Since a sustainable future based on the continued extraction of coal, oil and gas in the «business - as - usual mode» will not be possible because of both resource depletion and environmental damages (as caused, e.g., by dangerous sea level rise) we urge our societies to -LSB-...] Reduce the concentrations of warming air pollutants (dark soot, methane, lower atmosphere ozone, and hydrofluorocarbons) by as much as 50 % [and] cut the climate forcers that have short atmospheric lifetimes.

For example, the direct radiative effect of a mass of methane is about 84 times stronger than the same mass of carbon dioxide over a 20 - year time frame [22] but it is present in much smaller concentrations so that its total direct radiative effect is smaller, in part due to its shorter atmospheric lifetime.

[39] A 2014 analysis, however, states that although methane's initial impact is about 100 times greater than that of CO2, because of the shorter atmospheric lifetime, after six or seven decades, the impact of the two gases is about equal, and from then on methane's relative role continues to decline.

Not exact matches

At the same time the lifetime of atmospheric ozone is short due to the exceptionally warm and moist conditions in the tropical West Pacific.

By using dual radioactive tracers with differing lifetimes, Wilson et al. [2017] found short term increases in CH4 and CO2 release during periods of thaw in a discontinuous permafrost were generally offset by long - term accumulation of peat in the ensuing millennia, leading the regions to continue to be net carbon sinks with negative atmospheric radiative forcing, given the long life - time of atmospheric CO2.

Its average atmospheric lifetime is about 9 days, which is way too short for getting mixed properly by turbulent flows.

Fischer said that a by - product of the study was to better constrain the atmospheric lifetime of methane in the atmosphere — it had a shorter lifetime when the climate was cold.

Further, translating regional sulfate emission into global forcing isnt really appropriate, since atmospheric sulfate has too short of an atmospheric lifetime (owing to cloud and rain processes) to influence the global radiation balance.

However, there is ample empirical evidence that the atmospheric CO2 lifetime is quite short — 5 to 10 years.

Like other tiny atmospheric particles called aerosols, black carbon (BC) has a short lifetime in the atmosphere of about a week because it is removed by rain or snow.

CH4 is relatively short - lived in the atmosphere (atmospheric lifetime on the order of a decade) relative to CO2 (atmospheric lifetime on the order of centuries) and therefore has a higher global warming potential over the shorter 20 - year time horizon (86 versus 34; Myhre et al. 2013).

Deep cuts in carbon dioxide emissions are urgently needed to prevent dangerous climate change, but they must be complemented by reductions in short - lived climate pollutants, which produce a strong global warming effect but have relatively brief atmospheric lifetimes.

Abstract - Although carbon dioxide emissions are by far the most important mediator of anthropogenic climate disruption, a number of shorter - lived substances with atmospheric lifetimes of under a...

The response of atmospheric concentration to a methane release depends on whether the release time scale is shorter or longer than the atmospheric lifetime of methane.

Since the atmospheric lifetime of black carbon is only a few days, reducing black carbon emissions can bring about a rapid climate response in a short amount of time.

But it is not a simple monotonic function of average specific humidity, because water vapor is never a well mixed gas, its atmospheric lifetime (~ 9 days) is way too short for that.

Bromine, the ozone - depleting element found in methyl bromide, is nearly 60 times more effective at destroying ozone than the chlorine found in CFCs.9 This means that even though its atmospheric lifetime is quite short (a little over a year) 31, the immediate impact of changes in methyl bromide emissions on the ozone layer is very high compared to other chemicals.

Due to their much shorter lifetime, their atmospheric concentration can be reduced much faster though.