Sentences with phrase «large aerosol increases»
The political «solution» is: Unsupported claims of large aerosol increases which allows the fiction of the a high climate sensitivity to be maintained, leading to alarming and false predictions of catastropic future warming.
http://www.climate-resistance.org/ Not exact matches
On the other hand, «if some volcanoes that are large enough go off and if they are the dominant cause [of increasing aerosols], then we will probably see some increases» in cooling.
A model developed by Koren and his team showed that an increase in aerosols, even in relatively polluted conditions, should result in taller, larger clouds that rain more aggressively.
A 2013 computer simulation of this process found increased aerosols alone did result in more lightning due to ice crystal collisions, although at very large aerosol volumes the effect was muted.
Aerosols that are close in size or larger than the wavelengths of visible light tend to scatter all colors indiscriminately, increasing the overall brightness of the sky but dampening color contrast.
Of the other strand, aerosol cooling, Rasool and Schneider, Science, July 1971, p 138, «Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate» is the best exemplar.
Here a reaction on the main points about the natural (solar, volcanic) vs. man - made (GHGs, aerosols) sensitivity: — If there was a larger temperature variation in the past millennium, the mathematical evidence is that an increase of one of the terms of the temperature trend equation must go at the cost of one or more other terms of the equation.
The Hadcm3 model has calculated the largest increase in temperature which may be attributed to the reduction of aerosol load (40 %) over the period 1990 - 1999 somewhere in NE Europe, other models do that more in Southern Europe.
The Intergovernmental Panel on Climate Change (IPCC) considers that the increase in aerosols and clouds since pre-industrial times represents one of the largest sources of uncertainty in climate change5.
Expectations of decreases in large source regions such as China [195] may be counteracted by aerosol increases other places as global population continues to increase.
Of the other strand, aerosol cooling, Rasool and Schneider, Science, July 1971, p 138, «Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate» is the best exemplar.
If sulfate aerosols nucleate cloud drops, resulting in a greater number of smaller droplets rather than a few large ones, this will further increase scattering and cooling.
Are you saying that the loss of these aerosol injections will create such as large, sudden increase in GW that they will get the same kind of disruptions in rain patterns anyway?
While it is true that, holding everything else equal, an increase in how much cooling was associated with aerosols would lead to an increase in the estimate of climate sensitivity, the error bars are too large for this to be much of a constraint.
Here a reaction on the main points about the natural (solar, volcanic) vs. man - made (GHGs, aerosols) sensitivity: — If there was a larger temperature variation in the past millennium, the mathematical evidence is that an increase of one of the terms of the temperature trend equation must go at the cost of one or more other terms of the equation.
In terms of the aerosols: If you want to argue really simplistic, you could still explain what is seen in Dave's NH - SH time series: due to the larger thermal inertia of the SH, you would expect slower warming there with greenhouse gas forcing, so an increase in NH - SH early on, which would then be reduced as aerosol forcing becomes stronger in the NH.
SW fails to mention effects that may counter-act warming trends, such as irrigation, better shielding of the thermometers, and increased aerosol loadings, in addition to forgetting the fact that forests were cut down on a large scale in both Europe and North America in the earlier centuries.
«Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate.»
Science published a study in 1971 by S. Ichtiaque Rasool and Stephen H. Shneider titled «Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate.»
2) There are errors in the assumed forcings, such as: a) AR5 let stratospheric aerosol concentration go to zero after 2000 (a sure way to prod the models into higher predictions), but it actually increased for the next 10 years «probably due to a large number of small volcanic eruptions».
Hansen has stated that the cause for his is the large increase in sulfate aerosols resulting from Chineses coal burning.
Studying Chinese summer thunderclouds the researchers found that an increase in aerosols led to larger and more persistent convective cloud systems, with larger anvils at several kilometers of altitude that may reflect more sunlight, but trap even more heat — as their high - resolution model showed.
This aerosol driven increase in energy reaching the surface is much larger than any increase caused by GHGs during that same 11 year period: a potential aerosol driven forcing of 3.4 to 5 watts / M ^ 2.
Are you certain that the paper (Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate) from Rasool and Schneider has been retracted?
The indirect aerosol effect may include increased cloud brightness, as aerosols lead to a larger number of smaller cloud droplets (the so - called Twomey effect), and increased cloud cover, as smaller droplets inhibit rainfall and increase cloud lifetime.
Effects on the global temperature of large increases in carbon dioxide and aerosol densities in the atmosphere of Earth have been computed.
As for your alternative explanation in a previous post, I am trying to think of a world subject to a warming force due to increased GHGs since the 19th century... this warming didn't materialize around the mid-century due to large quantities of aerosols emitted in the NH... somehow this NH cooling trespassed the equatorial belt and affected the SH, which not only didn't warm but cooled even more than the NH... doesn't sound very plausible, does it?
Linkages of the observed changes in the diurnal temperature range to large - scale climate forcings, such as anthropogenic increases in sulfate aerosols, greenhouse gases, or biomass burning (smoke), remain tentative.
We find that the increase in emissions of inorganic aerosol precursors is much larger than the corresponding aerosol increase, reflecting a non-linear atmospheric response.
There is also a fairly large increase in modelled sulfate load over the Tropical North Atlantic from about 1960, which is presumably the main cause of modelled present day strong aerosol forcing off the West African coast, as depicted in Booth et al. figure 4b.
Given the cubic sensitivity of dust mobilization to wind speed, these results point to the possibility of a substantial increase in dust output from the world's largest mineral aerosol source toward the end of the 21st century.