With current greenhouse gas levels now in the range of 400 - 405 parts per million coinciding with substantial jumps in glacial melt and sea level rise, it may be worth taking a look back at times in the geological past
when atmospheric heating conditions were similar to those seen today.
Not exact matches
Scientists finally confirmed this hypothesis in the 1960s
when it became possible to develop adequate models of solar
atmospheric heating.
Our understanding of how certain
atmospheric gases trap
heat dates back almost 200 years to 1824
when Joseph Fourier described what we know as the greenhouse effect.
Turning up the
heat seems to increase the rate at which the plants produce methane, Keppler says, which could explain why
atmospheric levels of methane were high hundreds of thousands of years ago
when global temperatures were balmy.
«Once you have that combination of ocean
heat and
atmospheric heat — which are related — that's
when the ice sheet could really experience dramatic ice mass loss.»
For as much as
atmospheric temperatures are rising, the amount of energy being absorbed by the planet is even more striking
when one looks into the deep oceans and the change in the global
heat content (Figure 4).
And no, there is no huge plunge in tropical or global surface air temperatures
when the ocean circulation spins up because there is a near - compensating decrease in poleward
heat transport via the
atmospheric circulation.
There are multiple non-radiative energy fluxes at the surface (latent and sensible
heat fluxes predominantly) which obviously affect the
atmospheric temperature profiles, but
when it comes to outer paces, that flux is purely radiative.
And the other sort of latent
heat, a decrease in
atmospheric water vapour is also the stuff of fantasy requiring a change of 50,000 cu km
when the atmosphere only contains (and only can contain) ~ 13,000 cu km without crazy temperature increases.
However,
when heated to temperatures of over 705 °F and pressures of more than 3200 pounds per square inch (psi;
atmospheric pressure is about 15 psi at sea level), water enters a unique, supercritical phase.
I'm a phsycist - and I remember being highly skeptical about AGW
when I first heard about it in the late 80's - reasoning that the ocean was such an enormous
heat sink that any impact on
atmospheric temperatures would be dwarfed by the impact on increased
heat content in the ocean.
For as much as
atmospheric temperatures are rising, the amount of energy being absorbed by the planet is even more striking
when one looks into the deep oceans and the change in the global
heat content (Figure 4).
This vast emission has spiked
atmospheric CO2 and CO2e (
when all other
heat trapping gasses are included) levels to above 400 parts per million and 481 parts per million respectively.
If we continue emitting large amounts of CO2 while we work towards converting to 3/4 solar power and survive the
heating that we inadvertently speed up by reflecting more
heat into an atmosphere already overburdened with reflective -
heat - capturing CO2, some day in the future
when the
atmospheric CO2 returns to its natural percentage of 0.0300 % instead of today's extremely high 0.03811 % the world will cool down to the levels that nature intended.
How hurricanes develop also depends on how the local atmosphere responds to changes in local sea surface temperatures, and this
atmospheric response depends critically on the cause of the change.23, 24 For example, the atmosphere responds differently
when local sea surface temperatures increase due to a local decrease of particulate pollution that allows more sunlight through to warm the ocean, versus
when sea surface temperatures increase more uniformly around the world due to increased amounts of human - caused
heat - trapping gases.25, 26,27,28
The identified
atmospheric feedbacks including changes in planetary albedo, in water vapour distribution and in meridional latent
heat transport are all poorly represented in zonal energy balance model as the one used in [7] whereas they appear to be of primary importance
when focusing on ancient greenhouse climates.
«To better monitor Earth's energy budget and its consequences, the ocean is most important to consider because the amount of
heat it can store is extremely large
when compared to the land or
atmospheric capacity,» said Yan.
They will go on gaining
heat until the radiative balance is restored, and this happens
when the sea surface temperature has increased sufficiently for it to shed more
heat to space through the longwave
atmospheric window.
When oceans are carrying
heat deeper below the surface, then the
atmospheric heat is removed by transference processes of wind, current and radiative transfer.
Not all at once of course, but as mentioned above,
when the PDO goes positive, we can likely expect a significant change in the
atmospheric heat content as
heat energy is transferred from the deep oceans back into the atmosphere.
How hurricanes develop also depends on how the local atmosphere responds to changes in local sea surface temperatures, and this
atmospheric response depends critically on the cause of the change.23, 24 For example, the atmosphere responds differently
when local sea surface temperatures increase due to a local decrease of particulate pollution that allows more sunlight through to warm the ocean, versus
when sea surface temperatures increase more uniformly around the world due to increased amounts of human - caused
heat - trapping gases.18, 25,26,27 So the link between hurricanes and ocean temperatures is complex.
Worse, every rise in
atmospheric temperature is taken by AGW «science» to indicate warming,
when in many cases, it merely is a sign that additional
heat is exposed to the 4 degree Kelvin temperature of outer space, resulting in higher radiative losses.
Wait until next week
when we find out that
atmospheric CO2 molecules exchange tachyon particles so that
heat absorbance today
heats the air in the future, which explains why we have hidden
heat, a pause and why climate sensitivity appears to be lower than the 8.73 degrees it really is.
Obviously
when two oxygen atoms are coupled to a carbon atom it now acts as a pseudo-Tachyon; a carbon atom knows
when it is going to be oxidized in the future and it knows the future
atmospheric temperature equilibrium point, so while not bound to oxygen suck up
heat and then store it and then
when burnt, wait a few decades, and release the
heat they have been storing up while sitting in coal veins or in oil formations.
Extra
heat of this kind would also tend to enhance precipitation extremes — more rain
when it does rain and far more intense drought in areas affected by
heat and
atmospheric ridging.
Since to me (and many scientists, although some wanted a lot more corroborative evidence, which they've also gotten) it makes absolutely no sense to presume that the earth would just go about its merry way and keep the climate nice and relatively stable for us (though this rare actual climate scientist pseudo skeptic seems to think it would, based upon some non scientific belief — see second half of this piece),
when the earth changes climate easily as it is, climate is ultimately an expression of energy, it is stabilized (right now) by the oceans and ice sheets, and increasing the number of long term thermal radiation /
heat energy absorbing and re radiating molecules to levels not seen on earth in several million years would add an enormous influx of energy to the lower atmosphere earth system, which would mildly warm the air and increasingly transfer energy to the earth over time, which in turn would start to alter those stabilizing systems (and which, with increasing ocean energy retention and accelerating polar ice sheet melting at both ends of the globe, is exactly what we've been seeing) and start to reinforce the same process until a new stases would be reached well after the
atmospheric levels of ghg has stabilized.
So why do we only ever hear about the
heat retaining properties of the atmosphere
when the true cause of the Earth having the
atmospheric temperature it has is not the atmosphere at all but the oceans?
After all CO2 is itself only a tiny portion of total greenhouse gases so that it can not have any significant long term effect
when the water vapour primarily affecting
atmospheric heat retention is in turn itself but a tiny proportion of global
heat retaining capacity
when one adds in the vastly greater oceanic
heat retaining effect.
Steve — I have stated multiple times that the climatologists are all gathered under the lamppost as its light there — using
atmospheric temperature
when they should be measuring
atmospheric heat content in kilojoules per kilogram taking account of the enthalpy.
It is also
when we have increasingly good measures of
atmospheric temperature, ocean
heat content, and the various agents that warm and cool the climate.
Between 1910 and 1940 global
atmospheric temperature rose by 0.5 C (probably due to increased CO2 concentration), we should not be surprised
when this
heat reappears 40 years later in the oceans.
An
atmospheric vortex engine (AVE) uses a controlled vortex to capture mechanical energy produced
when heat is carried upward by convection in the atmosphere.
They make up the difference by assuming 333 W / m ^ 2 LW RF measured by «pyrgeometers» pointing to the atmosphere («back radiation») provides extra surface
heat when standard physics shows for a normal temperature gradient, an
atmospheric RF can't transfer any energy to the surface.
However, it is likely that at night (
when there is no incoming solar energy) or at other times
when atmospheric conditions are such that there is a temperature inversion, any LWIR that has been delayed has sufficient opportunity to radiate to space there by meaning that no excess
heat is «trapped» (ie., the
heat in the atmosphere does not build up).
Any actual
heating from the «
atmospheric greenhouse effect» may vanish in the same way that the real greenhouse effect does
when the windows to the greenhouse are opened.