Sentences with phrase «reduced warming of the atmosphere»

If convection decreases, says Moore, the Gulf Stream may weaken, thereby reducing the warming of the atmosphere, in comparison to today.
With the reduced warming of the atmosphere will the warming of the oceans slow down or is the CO2 concentration warming the oceans independently of the air temperature?

Not exact matches

«Our results indicate that a wide range of POPs have been remobilized into the Arctic atmosphere over the past two decades as a result of climate change, confirming that Arctic warming could undermine global efforts to reduce environmental and human exposure to these toxic chemicals,» write the scientists, whose analysis was published yesterday in the journal Nature Climate Change.
Warmer conditions reduce the solubility of oxygen from the atmosphere and increase oxygen consumption because the biological respiration processes are boosted.
As the Arctic summers are getting warmer we may see an acceleration of global warming, because reduced sea ice in the Arctic will remove less CO2 from the atmosphere, Danish scientists report.
Limited growth in a drier climate has restricted the amount of carbon that new trees can lock away from the atmosphere, reducing their ability to counteract the effects of global warming.
Indeed, conventional wisdom held that higher levels of aerosol pollution in the atmosphere should cool the earth's climate because aerosols can increase cloudiness; they not only reduce precipitation, which raises the water content in clouds, but they also increase the size of the individual water droplets, which in turn causes more warming sunlight to be reflected back into space.
They suggest that forecasts of the global warming likely to result from doubling the amount of carbon dioxide in the atmosphere may, therefore, have to be reduced by about half.
There are global efforts to reduce the man - made emission of GHG's that likely contribute to global warming by trapping the sun's heat inside the atmosphere, including emission standards and financial penalties on excess emissions.
One high - profile target, he says, should be reducing emissions of tiny soot particles, known as black carbon, that don't last long in the atmosphere but have an outsize impact on warming.
So even without concerns about the warming effect of carbon pollution in Earth's atmosphere, the Paris agreement goes a long way toward reducing harmful air pollution worldwide.
For instance, if nothing is done to reduce the amount of heat - trapping gasses, such as carbon dioxide, in the atmosphere, Earth could be 5 to 15 degrees Fahrenheit (3 to 8 degrees Celsius) warmer by the end of century, said Sivan Kartha, a senior scientist at the Stockholm Environment Institute.
The mechanism for reducing anthropogenic global warming, initiated through radiative forcing of greenhouse gases, is to stop emissions and reduce their concentration in the atmosphere to levels which do not stimulate carbon feedbacks.
Furthermore, even if the net meridional overturning circulation, which is broader than just the Gulf Stream, slows, that doesn't mean that the poleward heat transport will be reduced, as a warmer wetter atmosphere can also transport a great deal of heat (latent heat) to poleward regions, which seems to be what has been happening.
i.e. the water vapour will tend to carry heat (in the form of warmed air and latent heat) higher in the atmosphere, reducing surface warming.
Increased warming of the cool skin layer (via increased greenhouse gases) lowers its temperature gradient (that is the temperature difference between the top and bottom of the layer), and this reduces the rate at which heat flows out of the ocean to the atmosphere.
Adding further greenhouse gases to the atmosphere warms the ocean cool skin layer, which in turn reduces the amount of heat flowing out of the ocean.
[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
So anthropogenic land use changes (which are strongly biased toward deforestation and desertification) tend to raise the temperature observed at thermometer shelters around the world, while at the same time they tend to reduce the amount of energy available to warm the atmosphere above the surface.
Reliance on global CCS into deep wells to reduce GHG emissions into the atmosphere and effectively addressing the human - induced sources and consequences of global warming and climate change is pure «Greenwash.»
Warming of the oceans leads to increased vertical stratification (decreased mixing between the different levels in the oceans), which would reduce CO2 uptake, in effect, reducing the oceanic volume available to CO2 absorption from the atmosphere.
The increased troposphere - surface warming from more CO2 is best thought of by the rate of IR escape out the top of the atmosphere, which is reduced for a given temperature.
At the same time it will help mitigate and solve catastrophic consequences of human - induced global warming and climate change by reducing greenhouse gas emissions into the atmosphere.
Temperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differential heating.
... interestingly in the grey gas case with no solar heating of the stratosphere, increasing the optical thickness of the atmosphere would result in an initial cooling of and in the vicinity of the skin layer (reduced OLR), and an initial radiative warming of the air just above the surface (increased backradiation)-- of course, the first of those dissappears at full equilibrium.
Simple physics dictates that with less sea ice there is magnified warming of the Arctic due to powerful albedo feedback; this in turn reduces the equator to pole temperature gradient which slows the jet stream winds causing them to become more meridional; this combined with 4 % more water vapor in the atmosphere (compared to 3 decades ago) is leading to much more extremes in weather.
In the report released today by the Intergovernmental Panel on Climate Change, the world's top scientists warned that global warming is unequivocally man - made and will become irreversible if we do not act now to reduce the amount of carbon emissions released into the atmosphere.
IF cool deep sea water were mixed relentlessly with surface water by some engineering method --(e.g. lots of wave operated pumps and 800m pipes) could that enouromous cool reservoir of water a) mitigate the thermal expansion of the oceans because of the differential in thermal expansion of cold and warm water, and b) cool the atmosphere enough to reduce the other wise expected effects of global warming?
Re 346 ziarra, again: «The radiation from a cooler upper atmosphere can warm the surface because it counteracts the even greater amount of radiation in the other direction, thus reducing the net flow of heat.»
That will make it more difficult to stabilise carbon dioxide (CO2) levels in the atmosphere and to reduce the risks of extreme forms of global warming.
Mauritsen said the warming of the upper ocean and the atmosphere during the summer through reduced cooling around Europe results in the stronger transport of heat into the Arctic, which is actually «pristine» in general.
In order to effectively address global warming, we must significantly reduce the amount of heat - trapping emissions we are putting into the atmosphere.
On longer term, this effect is countered by the increase of CO2 in the atmosphere: more CO2 in the atmosphere means a higher pCO2, thus a smaller difference in pCO2 over the warm oceans, thus reducing the outgassing of CO2.
Of course, even if we ceased to put carbon in the atmosphere tomorrow, the warming would continue until the various carbon sinks had time to reduce atmospheric carbon so we can't even stop the warming of the oceans if we wanted tOf course, even if we ceased to put carbon in the atmosphere tomorrow, the warming would continue until the various carbon sinks had time to reduce atmospheric carbon so we can't even stop the warming of the oceans if we wanted tof the oceans if we wanted to.
This could happen because SRM masks the warming caused by greenhouse gases rather than reducing the concentration of gases in the atmosphere.
To reduce global warming by 2100 by 0.5 degC will require the removal of a calculated 1,020 Gt CO2 from the atmosphere (to arrive at 535 ppmv by 2100 instead of the «base case» of 600 ppmv).
Mr. Clinton says his goal is to reduce the threat in coming decades of droughts, coastal floods, and famine from global warming — a warming of the atmosphere caused by rising concentrations of gases, especially carbon dioxide, released when fuels and forests are burned.
One is the part of the emission from the atmosphere that reduces with added GHGs, and the other is the Planck term from the surface and atmosphere that increases with warming.
It has been recorded since the 1960s in terms of both rising ocean temperature and rising acidity, both of which reduce the capacity to remove CO2 from the atmosphere, thereby advancing AGW and further ocean warming.
seems to be... «the warming lower troposphere acts a governor or control valve, reducing the rate of net heat flux between ocean and atmosphere»
More clouds both drastically reduce energy input from the sun and simply slow release of what energy there is trapped in the lower troposphere, but the long term effect would be a fall in average temperature because of the significantly reduced input power but the atmosphere's ability to cool is aided by air current circulation whereby the warmer air rises above those low clouds and that infra - red is more easily re-emitted into space, whereby the low clouds now block that re-emission from hitting the ground again to any significant degree.
He said his study showed the 2C target set in Paris was «still just about achievable» but limiting warming to 1.5 C in the long term could only be achieved by «overshooting» and then somehow reducing the temperature using futuristic technology, such as artificial trees which suck CO2 out of the atmosphere.
The sun warms the ocean, and the atmosphere (and sea ice) reduces the net flow of energy from ocean to space.
Do you deny that increasing the mass, by coupling to sub-surface material by conduction, or a (transparent) atmosphere by convection, would reduce the rate of change of temperature, both during the cooling phase, and in the warming phase when the illumination is switched on again?
AGW climate scientists seem to ignore that while the earth's surface may be warming, our atmosphere above 10,000 ft. above MSL is a refrigerator that can take water vapor scavenged from the vast oceans on earth (which are also a formidable heat sink), lift it to cold zones in the atmosphere by convective physical processes, chill it (removing vast amounts of heat from the atmosphere) or freeze it, (removing even more vast amounts of heat from the atmosphere) drop it on land and oceans as rain, sleet or snow, moisturizing and cooling the soil, cooling the oceans and building polar ice caps and even more importantly, increasing the albedo of the earth, with a critical negative feedback determining how much of the sun's energy is reflected back into space, changing the moment of inertia of the earth by removing water mass from equatorial latitudes and transporting this water vapor mass to the poles, reducing the earth's spin axis moment of inertia and speeding up its spin rate, etc..
It does magnify the night - time greenhouse effect by warming the clouds or the higher levels of the atmosphere, thus increasing the amount of heat radiated back to the surface; though the overall effect is to reduce net planetary greenhouse warming by limiting the temperature gradient.
This greater plant growth means more carbon is stored in the increasing biomass, so it was previously thought the greening would result in more carbon dioxide being taken up from the atmosphere, thus helping to reduce the rate of global warming.
Thus (in my opinion) both the greenhouse gasses and the atmosphere itself act in partnership to reduce the cooling of the surface (erroniously called warming, but you know what I mean).
It is worth noting that, although these technologies could theoretically lower global warming, they do not aim to reduce the amount of greenhouse gases in the atmosphere and, therefore, would not be able to directly address problems such as ocean acidification.
RKS: there is a GHE because by reducing surface emissivity, GHGs increase the impedance for the transfer to the atmosphere and space of the 160 W / m ^ 2 average solar warming of the surface.
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