Sentences with phrase «cooling effect of»

what you're saying is that maybe without the cooling effect of our CO2 emissions over the last century +, we would have warmed even more from the other unspecified forcings.

And the net forcing has been reduced about half by the cooling effect of dust and other particles belched and stirred into the air mainly by darkside CO2 immigrants, who lurch and cruise about Planet Earth's countryside.

Global warming overwhelms the cooling effect of ocean slowdown, except for a while in a small part of the ocean.

As to a planet without water, the analysis is complicated by countervailing effects — the absence of water vapor and cloud water / ice reduces the greenhouse warming effect but the absence of clouds, snow and ice reduces the cooling effect of the Earth's albedo.

«The net cooling effect of a young, healthy tree is equivalent to ten room - size air conditioners operating 20 hours a day.»

However, there is also the global cooling effect of aerosols (such as in nuclear winter).

Notable among these are Wentz et al. (2007), who suggest that the IPCC has failed to allow for two - thirds of the cooling effect of evaporation in its evaluation of the water vapor - feedback; and Spencer (2007), who points out that the cloud - albedo feedback, regarded by the IPCC as second in magnitude only to the water - vapor feedback, should in fact be negative rather than strongly positive.

The current approach that is generally pursued assumes essentially that past climate variability is indistinguishable from a stochastic red - noise process... Given such a null hypothesis, the official consensus of IPCC (1995) tilts towards a global warming effect of recent trace - gas emissions, which exceeds the cooling effect of anthropogenic aerosol emissions.»

The cooling effect of a grand solar minimum can also be estimated very easily without the aid of climate models, because the change in the amount of solar radiation reaching the Earth's surface is directly proportional to the temperature change it causes.

One constant debate is the importance of undersea and terrestrial volcanoes in contributing CO2 and the cooling effect of the ash cast into the sky.

The estimated warming of 2.4 °C is the equilibrium warming above preindustrial temperatures that the world will observe even if GHG concentrations are held fixed at their 2005 concentration levels but without any other anthropogenic forcing such as the cooling effect of aerosols.

I also predict it will be accompanied by studies showing either: a) The quantity of atmospheric aerosol from the 40's -70's is much less than previously thought b) The cooling effect of aerosols is much less significant than previously thought

When these uninsulated buckets were hauled from the ocean, the temperature probe would get a little colder as a result of the cooling effect of evaporation.

As the wet bulb temperature is effectively the lowest possible temperature that evaporative cooling can reach I would guess that the evaporative cooling effect of trees would have no impact on wet bulb temperature (but simply cash in some of the maximum possible evaporative cooling potential).

The air movement makes you feel cooler, and the app then suggests a higher temperature setting for the Nest that takes into account the cooling effect of the fan.

The warming commitment if we stop all human emissions (GHG and aerosol) is probably very substantial: The cooling effect of the aerosol will very quickly disappear, thereby «unmasking» the greenhouse warming, approximately half of which has been canceled by aerosol cooling up to now.

To use the idea that there might be some uncertainty about the net cooling effect of high - latitude afforestation as rational for scrapping REDD is irresponsible in the extreme.

Another climate feedback found: «cooling effect of natural atmospheric particles is greater during warmer years»

For truly boreal systems (further north than Adirondacks), my understanding is that there is enough evidence for a strong warming albedo effect of forests (counter-acting the cooling effect of C sequestration) that we probably should not attribute carbon offsets to boreal reforestation based simply on carbon accounting of tree biomass.

Whew, I've read most of the comments over the last couple of days and yet I see nothing discussed about the cooling effect of GHGs.

Tall smokestacks effectively reduce ground - level air pollution, but they do not reduce the cooling effect of aerosol / particulate pollution.

To have a cooling effect of.5 - 1.0 C (which is what they needed, at a minimum, to make their models work running backwards) would imply aerosols were cooling these selected areas of effect by 6 - 12 degrees Celsius, which was totally improbable.

It seems from the observational evidence that the potentially cooling effect of a more disturbed solar surface is greater then the warming effect of the very small TSI increase at such times and the oceanic effect is far greater than either.

It will become increasingly clear in the next few years that global temperatures have not warmed significantly since about 1980, and the small amount of observed atmospheric warming was primarily due to the natural recovery after the temporary cooling effect of two major volcanoes, El Chichon in 1982 and Pinatubo in 1991 +.

«It is well understood that [aerosols»] presence is masking a substantial amount of greenhouse gas warming,» says Cat Scott, a research fellow at the University of Leeds whose own work has helped scientists understand the cooling effect of aerosols.

The suggestion that there are no solar effects seems to contradict observations and the suggestion that extra infra red warms the oceans on timescales that are meaningful is against logic given the net cooling effect of evaporation.

On that basis alone the cooling effect of the oceans would dictate that it would take many millennia for any warming effect in the air from extra CO2 to become measurable let alone dangerous.

whilst having no idea of the net warming or cooling effect of the level of TSI actually being received by the Earth during the relevant period.

... The development is beautifully consistent with a cooling effect of the solar activity in the same period.

If we account for the cooling effect of sulphur aerosols from industrial pollution, greenhouse gases have already contributed 2 ℃ of global warming.

Temps could be warmer than they otherwise would be without the cooling effect of increased cosmic rays.

The report also uses NASA Landsat 7 data to map the surface temperature of mid-town Manhattan and show the cooling effect of Central Park.

These approaches exclude the cooling effect of aerosols.

But this also means the slight cooling effect of aerosols is reduced, and the world is a little warmer as a result.

The reason is that without the cooling effect of aerosols formed from certain emissions, the models significantly overpredict warming from greenhouse gases.

But again he has left out the cooling effect of the ever present evaporation.

The cooling effect of the density and lack of solar penetration would account that these gases never formed but as a liquid of into a more sold state with sediments over time from rocks and ash that would be suppressed into sand.

However, this offsetting effect is unlikely to remain in the future as improved pollution controls are expected to significantly reduce the cooling effect of aerosols over the course of coming decades: Meinshausen et al (2006).

Past climate ups and downs mostly mesh well with natural variations in the brightness of the sun or the cooling effect of parasol - like plumes of particles spewed by big volcanoes.

At the very least, the science indicates that we ought to consider cancelling the «acid rain» controls and take advantage of the cooling effect of the aerosols to buy us some time against greenhouse warming.

High values of global cloud cover is associated with low global temperatures, demonstrating the cooling effect of clouds.

The cooling effect of aerosols has been known for some time.

New UBC research shows that climate change may impede the cooling effect of volcanic eruptions.

Ideas include aircraft spraying out sulphur particles at high altitude to mimic the cooling effect of volcanoes or using artificial «trees» to absorb CO2.

... Schneider became aware that he had overestimated the cooling effect of aerosols, and underestimated the warming effect of CO2 by a factor of about three.

Though natural variability (external and internally generated — including the cooling effect of naturally produced aerosols) would affect the final temperature achieved, this would not affect the calculation of TCR as long as natural variability is accounted for.

The situation we have here is that the cooling effect of man - made aerosols has declined appreciably [since 1951] as CO2 emissions and other GHGs have increased, so we would expect even greater warming, which hasn't happened.

He also found that much of the effect was due to natural aerosols which would not be affected by human activities, so the cooling effect of changes in industrial pollution would be much less than he had calculated.

So what happened to the COOLING effect of GHGs?

But not only did Michaels make no mention of Scenarios B & C, he also never mentioned that Hansen's paper included the cooling effect of a major volcanic eruption (in Scenarios B & C) nor did he make any mention that one in fact occurred — Mt. Pinatubo (and neither does O» Donnell, at least the part you quoted).