And that entropy will almost certainly have
strong feedback effects on their planet's habitability, as we are already beginning to see here on Earth.»
Not exact matches
When I, with some colleagues at NASA, attempted to determine how clouds behave under varying temperatures, we discovered what we called an «Iris
Effect,» wherein upper - level cirrus clouds contracted with increased temperature, providing a very
strong negative climate
feedback sufficient to greatly reduce the response to increasing CO2.
I'm not even an amateur climate scientist, but my logic tells me that if clouds have a
stronger negative
feedback in the Arctic, and I know (from news) the Arctic is warming faster than other areas, then it seems «forcing GHGs» (CO2, etc) may have a
strong sensitivity than suggested, but this is suppressed by the cloud
effect.
Athlete
feedback confirms (observationally) «strategic» carbohydrate intake actually has a much
stronger and lasting
effect when the athlete is of fat - adapted (keto - adapted) and using VESPA when following the OFM protocol.
Hansen et al. recently explored the
effect of stratification of meltwater water on storminess, sea surface temperature and sea level rise and found that, among other things, their model predicted
strong feedbacks in ice sheet exposure to destabilizing influences.
Cloud
feedbacks may be complicated, but a simple rule of thumb that emerges from that complexity is that high clouds exert a
strong greenhouse
effect and low clouds don't.
And I suppose if we aren't talking about the twilight
effect, then the negative
feedback won't be that negative if the clear sky greenhouse
effect is becoming
stronger with higher temperatures.
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.
The problem arises, I believe, when
strong feedbacks, «masking»
effects of aerosols and volcanoes and other uncertain assumptions are fed into computer models to generate catastrophic scenarios for the near - medium future.
The net
effect is a much
stronger albedo
feedback in the NH than in the SH, enhance because the large land mass in the NH results in larger temperature fluctuations in any event.
Once triggered, the radiative
effects of H2O are completely overwhelmed by the storms, resulting in a very
strong localized negative
feedback.
This is a second theory, that the Earth's temperature system is dominated by very
strong net positive
feedback effects.
That the earth's climate is dominated by
strong positive
feedback that multiplies the
effect of # 1 3,4,5 times or more.
The CO2 is a
feedback to ocean warming, but not
strong enough for a runaway
effect.
The
feedbacks are therefore likely to be considerably
stronger when the cooling
effect of the ocean is taken into account.
(While the data did suggest
strong positive water vapor
feedback, which enhances warming, that was far exceeded by the cooling
effect of negative
feedback from cloud changes.)»
This water vapour
feedback may be
strong enough to approximately double the increase in the greenhouse
effect due to the added CO2 alone.
Not one of these
effects is very
strong on its own, and even adding each separately together would not fully explain the higher temperatures but rather than interacting additively, these different
effects appear to interact multiplicatively, with
feedbacks among the contributing factors leading to the surprisingly large increase in the chance of much higher temperatures.»
Ice albedo
feedback change is mainly limited to high latitude NH * land * during deglaciation, and its
effects — though
strong — are limited compared to those of a radiative forcing over the global ocean.
When I, with some colleagues at NASA, attempted to determine how clouds behave under varying temperatures, we discovered what we called an «Iris
Effect,» wherein upper - level cirrus clouds contracted with increased temperature, providing a very
strong negative climate
feedback sufficient to greatly reduce the response to increasing CO2.
If they're in phase with the convective
effects and if they are
strong enough, they might form a
feedback loop that sustains the MJO.
-- Their
strong claim of shaking the foundations of climate science is extremely unlikely; They don't provide compelling evidence for such an extraordinary claim; They vastly overestimate the likelihood of cooling
effects (
feedbacks), and underestimate, deny or ignore warming
effects.
Most of the warming in climate models is not from CO2 directly but from
feedback effects, and the evidence for
strong positive climate
feedback on temperature is very weak (to the point of non-existence) as compared to the evidence of greenhouse gas warming (yes, individual
effects like ice cover melting are undeniably positive
feedback effects, the question is as to the net impact of all such
effects).
Professor Lindzen's hypothesis is termed the iris
effect — that the Earth possessed an adaptive infrared iris that regulated temperature through a
strong negative
feedback.
It all starts with a small trigger (whatever the cause), that is fortified by responses which are
strong positive
feedbacks, but limited (self limiting, like ice sheets in the case of ice ages) in total
effect.
Chuck, the quote seems pretty accurate to me, but some will cavil about the use of the phrase «out - of - control runaway warming process» for «each» of those systems; but there are certainly
feedbacks associated with most of them that will indeed drive toward more warming, though some
effects are going to be
stronger and faster than others.
Now there were two papers put out by a Swiss team (you should know who) on consideration of European warming where they argued that natural
effects could be ruled out; the first paper argued for
strong water vapour
feedback causing the 1980 to 1998 temperature rise and the later paper, using exactly the same data, argued for a reduction in aerosols causing a recovery in temperatures over the same period.