But that does not change the basic log physics, which say more CO2 contributes
less direct warming.
Not exact matches
The longer spices sit on the shelf — especially in
warm kitchens or
direct light — the
less potent they become.
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Before allowing the temperature to respond, we can consider the forcing at the tropopause (TRPP) and at TOA, both reductions in net upward fluxes (though at TOA, the net upward LW flux is simply the OLR); my point is that even without
direct solar heating above the tropopause, the forcing at TOA can be
less than the forcing at TRPP (as explained in detail for CO2 in my 348, but in general, it is possible to bring the net upward flux at TRPP toward zero but even with saturation at TOA, the nonzero skin temperature requires some nonzero net upward flux to remain — now it just depends on what the net fluxes were before we made the changes, and whether the proportionality of forcings at TRPP and TOA is similar if the effect has not approached saturation at TRPP); the forcing at TRPP is the forcing on the surface + troposphere, which they must
warm up to balance, while the forcing difference between TOA and TRPP is the forcing on the stratosphere; if the forcing at TRPP is larger than at TOA, the stratosphere must cool, reducing outward fluxes from the stratosphere by the same total amount as the difference in forcings between TRPP and TOA.
It follows that as a
direct result of the tropopause having been raised above the rising column there is
less warming by compression than there would otherwise have been at the base of the descending column.
Or you could believe the Warmists, and surround yourself with CO2, which should magically
warm you up by 33C if you stand in
direct sunlight, somewhat
less if the surrounding air temperature is say, -85 C.
Examples: Since leaves function more efficiently in diffuse light than in dappled bright - or - dark
direct light, clearer skies will reduce carbon uptake: Mercado et al. (2009); a multi-year study of grass found carbon uptake sharply decreased in hotter summers: Arnone et al. (2008);
warming kills plankton, resulting in
less emission of DMS and thus
less cooling clouds: Six et al. (2013); changes in Arctic rivers and coastlines could bring more carbon loss than models anticipated: Abbott et al. (2016).
However, Kelly Sims Gallagher is not merely a coincidentally handy local Tufts University professor, she has
direct connections with the same set of leaked industry memo phrases seen within the growing numbers of California global
warming lawsuits — the «reposition global
warming as theory rather than fact» strategy phrase and the «older,
less - educated males» / «younger, lower - income women» targeting phrases — which are widely repeated elsewhere as proof that the fossil fuel industry «pays skeptic climate scientists to participate in misinformation campaigns» undermining the certainty of catastrophic man - caused global
warming (despite those memos being worthless as evidence, but that is another matter).
While the brash brand of
direct interference into the public discourse on scientific findings about global
warming and associated harmful impacts we saw from Exxon operatives in the 1980s and 1990s has now morphed into a more passive,
less - visible form of tampering — such as the company's continued stream of donations (some alleged to be illegal) to groups known for lobbying against and often shooting down federal and state - level proposals to promote renewable energy and limit carbon emissions — perhaps Avery will be able to persuade the new corporate leadership team to stop funding these groups altogether.
The more
direct measure of global
warming provided by measuring the energy content of the climate system avoids many of these problems, although the observational record is shorter and
less complete (e.g. Church et al 2011).
We know it from
direct measurements of land and water, from shifts in where animals and plants live, from rapid increases in glacier and ice sheet melt, from sea level rise (due
less to melting ice, and more to expansion as the water
warms).
These observed changes aren't
direct observations of thermocline depth, but IMHO, if there's
less cold dense water on the bottom, there's more
warm water on top.
A wide range of human activities affect marine biodiversity both in
direct ways, such as exploitation by fisheries, habitat loss due to dredging, filling, and other construction influences, fishing gear impacts, and pollution, and in
less direct ways, including effects of global change resulting in acidification,
warmer waters, and coastal inundation.
Where the science is much
less certain is both, what is the scale of the feedbacks and what are the consequences of the total effects (
direct plus feedback) of CO2
warming?