Sentences with phrase «amplifying effects of warmer»

But I believe there is little doubt that the record - breaking scale and potential destructiveness of Sandy is due in large part to the amplifying effects of warmer ocean temperatures, higher atmospheric moisture content, and unusual Arctic weather patterns.
The findings reinforce suggestions that strong positive ice — temperature feedbacks have emerged in the Arctic15, increasing the chances of further rapid warming and sea ice loss, and will probably affect polar ecosystems, ice - sheet mass balance and human activities in the Arctic...» *** This is the heart of polar amplification and has very little to do with your stated defintion of amplifying the effects of warming going on at lower latitudes.
«In this condition, the ice sheet will continue to absorb more solar energy in a self - reinforcing feedback loop that amplifies the effect of warming,» wrote Ohio State polar researcher Jason Box on the meltfactor.org blog.

Not exact matches

What's more, since this calculation does not take into account any of the feedbacks likely to amplify the effect, well under 5000 TW may produce this degree of warming.
«From a policy perspective, we have to recognize that we have been trending toward drier conditions over the last 1,500 years and the warming in Nevada is only going to exacerbate that trend,» he said, noting that «warmer temperatures cause more soil moisture to evaporate so you amplify the effects of drought when climate is warming.
Current state - of - the - art climate models predict that increasing water vapor concentrations in warmer air will amplify the greenhouse effect created by anthropogenic greenhouse gases while maintaining nearly constant relative humidity.
This 2006 study found that the effect of amplifying feedbacks in the climate system — where global warming boosts atmospheric CO2 levels — «will promote warming by an extra 15 percent to 78 percent on a century - scale» compared to typical estimates by the U.N.'s Intergovernmental Panel on Climate Change.
... Based on these results, further warming and drying of tropical forests is expected to result in less uptake and more release of carbon on land, unfortunately amplifying the effect of fossil fuel emissions warming the climate.
The drought - induced decline of carbon - dense tropical forests and their replacement by lower - carbon savannas would release enormous amounts of CO2 to the atmosphere, amplifying global warming far beyond the effects of just the CO2 released by burning fossil fuels.
If the heat transport by the Atlantic thermohaline circulation suddenly increases for some reason (we'll come to that), Greenland suddenly gets warm (an effect amplified by receding sea ice cover of the seas near Greenland) and Antarctica starts to cool.
Now, if warming also causes increased CO2, then we may be talking about a positive feedback loop in which the warming spirals upwards, which amplifies the warming effect of whatever CO2 we humans contribute to the atmosphere.
Where you then have a talik, from this combination of geological and radiative forces, and then there is plenty of free gas underneath that can migrate out easily through pathways once there are such tears, and then you add on top of all that that it is a seismically active zone, one can easily see how global warming could greatly amplify the effects of an earthquake at that fault zone.
Apart from these last concerns, the WAIS is much less worrying than the GIS, because the huge thermal inertia and albedo effect of the EAIS, the antarctic continent itself, and the large amount of antarctic sea ice in the southern winter, all act to reduce the degree of warming for the WAIS (whereas the GIS is the victim of various unfortunate circumstances which amplify warming there).
Water vapor feedback can also amplify the warming effect of other greenhouse gases, such that the warming brought about by increased carbon dioxide allows more water vapor to enter the atmosphere.
Assuming that scientists haven't left out anything vital, this suggests that the net effect of water - based feedbacks is positive and would amplify GHG - induced warming by more than a factor of two.Many assumptions have been made, but the historical evidence increases our confidence in model results.
I'd like to stick to facts: * CO2 levels are rising because we emit CO2 (so we can do something about it) * CO2 is a greenhouse gas * CO2 thus contributes to warming of the surface * Other effects compensate or amplify these changes * Those other effects haven't reversed / stopped the warming trend yet
CO2 starts climate warming, increased water vapor due to the Clausius - Clapeyron phenomenon of thermodynamics, and then that water vapor amplifies the greenhouse effect to the desired, sufficiently frightening but sufficiently unverifiable critical level.
Its warming effect, however, is simultaneously amplified and dampened by positive and negative feedbacks such as increased water vapor (the most powerful greenhouse gas), reduced albedo, which is a measure of Earth's reflectivity, changes in cloud characteristics, and CO2 exchanges with the ocean and terrestrial ecosystems.
''... the warming is only missing if one believes computer models where so - called feedbacks involving water vapor and clouds greatly amplify the small effect of CO2.»
In particular, she worries that climate models «involve a lot of theory and guesswork» about amplifying feedbacks that enhance the uncontested warming effect of CO2, which places her in the company of lukewarmists.
Your guests would have us believe that sceptics contest the claim that «global warming is happening», whereas the question that most sceptics of climate science ask is about the role of feedback mechanisms that are believed to amplify the global warming effect — a subject on which there is far less consensus that your guests will admit.
Here's a study which highlights the importance of increased tropospheric humidity (water vapour) in amplifying a warming effect during the afforementioned Paleocene — Eocene Thermal Maximum — ttp: / / www.nature.com/nature/journal/v432/n7016/full/nature03115.
The iris hypothesis has not withstood the test of time - subsequent research has found that if it exists, the effect is much smaller than originally hypothesized, and may even slightly amplify rather than reducing global warming.
The IPPC has long conceded that catastrophic AGW is impossible without some further unknown, unobserved and unmeasured magick mystery forcing to amplify the warming effect of CO2.
This 2006 study found that the effect of amplifying feedbacks in the climate system — where global warming boosts atmospheric CO2 levels — «will promote warming by an extra 15 percent to 78 percent on a century - scale» compared to typical estimates by the U.N.'s Intergovernmental Panel on Climate Change.
The effect of clouds and cosmic rays probably amplified this solar warming.
An increase in glacialquakes signals accelerated melting of Greenland's glaciers, which both reveals the effects of global warming and is expected to contribute to future warmingamplifying the consequences in the Arctic region.9
The most likely combined effect of changes to all cloud types is to amplify the surface temperature warming (a positive feedback).
The sun can not be responsible for this particular warming, irrespective of how strongly one wishes to amplify its effect.
During a period of rapid population growth, a lower heat capacity due to drying out of the soil and lost vegetation, and an increase in heat retaining surfaces, then homogenization more often amplifies those warming effects that is not indicative of climate change.
Added methane reduces heat radiation to space, amplifying the warming effect of carbon dioxide produced by burning fossil fuels.
For example, the atmospheric warming due to increased CO2 might well be expected to increase water evaporation so as to keep Relative Humidity constant (albeit raising Specific Humidity), so amplifying the small warming effect of CO2 itself.
The runaway greenhouse effect has several meanings ranging from, at the low end, global warming sufficient to induce out - of - control amplifying feedbacks, such as ice sheet disintegration and melting of methane hydrates, to, at the high end, a Venus - like hothouse with crustal carbon baked into the atmosphere and a surface temperature of several hundred degrees, a climate state from which there is no escape.
If water vapor has an amplifying effect as climate modelers claim, why is the daily mean temperature in a dry, desert area warmer (in spite of nighttime cooling) than a humid tropical area at the same latitude?
«As the high latitudes warm faster than the mid-latitudes because of amplifying effects of melting ice, the west - to - east jet - stream wind is weakened.
This feedback system is confirmed by the CO2 record — in the past, the amplifying effect of CO2 feedback enabled warming to spread across the globe and take the planet out of the ice age.
... very few scientists close to the problem, when asked the specific question, would say that they are 95 per cent sure that the effect of clouds is to amplify rather than to reduce the warming effect of increasing carbon dioxide.
Recently there have been some studies and comments by a few climate scientists that based on the slowed global surface warming over the past decade, estimates of the Earth's overall equilibrium climate sensitivity (the total amount of global surface warming in response to the increased greenhouse effect from a doubling of atmospheric CO2, including amplifying and dampening feedbacks) may be a bit too high.
Moreover, remember that the effect of CO2 and the other greenhouse gases is to amplify the sun's warming.
Past interglacial warming were triggered by sharp spikes in solar irradiation associated with the Earth's position relative to the sun (Milankovic cycles), with consequent feedback release of greenhouse gas (CO2, CH4) from the oceans and the biosphere, resulting in atmospheric infrared radiation effects and in melting of ice sheets, which amplify global warming.
Because the basics of anthropogenic global warming are fairly straightforward — CO2 is a greenhouse gas, because of the lapse rate water vapor condenses or freezes out in the troposphere and acts mainly to amplify the effect of CO2, humans are burning a lot of fossil C and increasing the CO2 in the atmosphere, the surface of the earth is warming, the cryosphere is retreating, the climate that supports civilization is rapidly changing, and consequently we are facing an uncertain future — but the details are complex, it's easy to «misunderestimate» the way climate works in detail.
A pattern emerging from recent paleoclimatologic studies suggests that the climatic effects of eccentricity, precession, and axial tilt have been amplified during cool phases of the Cenozoic, whereas they have been dampened during warm phases.
Yes, certain effects can reasonably be said to amplify warming (ice albedo is probably one of them) but there must exist negative feedbacks that tend to damp out temperature movements.
Shifts in climate can be exponential, abrupt and massive due to «feedbacks,» which can amplify and diminish the effects of global warming.
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