Not exact matches
Following the maxim of
keeping everything as simple as possible, but not simpler, Will Steffen from the Australian National University
and I drew up an Anthropocene equation by homing in on the rate of change of Earth's life support system: the
atmosphere,
oceans, forests
and wetlands, waterways
and ice sheets
and fabulous diversity of life.
A study released last month in the Journal of Geophysical Research:
Atmospheres used three different models to run the same SSCE scenario in which sea - salt engineering was used in the low - latitude
oceans to
keep top - of -
atmosphere radiative forcing at the 2020 level for 50 years
and was then abruptly turned off for 20 years.
Most electricity generation produces CO2, but to stop the gas drastically changing climate
and ocean acidity, we have to
keep it out of the
atmosphere
The ability of the
oceans to take up carbon dioxide can not
keep up with the rising levels of greenhouse gases in the
atmosphere, which means carbon dioxide
and global temperatures will continue to increase unless humans cut their carbon dioxide emissions.
So they created a set of global climate models to analyze the
ocean and atmosphere over a 40 - year period,
keeping carbon dioxide levels fixed.
Understanding how carbon flows between land, air
and water is key to predicting how much greenhouse gas emissions the earth,
atmosphere and ocean can tolerate over a given time period to
keep global warming
and climate change at thresholds considered tolerable.
The key long - term stabilizing mechanism that
keeps Earth's climate in the habitable range (allowing liquid water on its surface) is the carbon cycle: it is the journey of carbon through the
atmosphere, the
ocean, the rocks,
and the volcanoes of our planet.
This peaceful haven in an intimate
and informal
atmosphere allows guests to enjoy a range of comfortable accommodations, from spacious, well -
kept rooms with
ocean an dgarden views, fully - equipped apartments
and luxurious Saban - style cottages.
There is no need to imagine huge amounts of energy to be shifted to
and fro, it suffices to
keep in mind that the thermal mass of the
oceans is big
and that of the
atmosphere comparatively negligible
If you can't
keep up with annual - decadal changes in the TOA radiative imbalance or
ocean heat content (because of failure to correctly model changes in the
atmosphere and ocean due to natural variability), then your climate model lacks fidelity to the real world system it is tasked to represent.
In a runaway greenhouse, enough water vapor evaporates from the
ocean to
keep the surface at saturation,
and even if there weren't any contribution to surface pressure from the rest of the
atmosphere, this would prevent boiling.
What
keeps the hurricane going is the cold upper
atmosphere and the warm sea surface (
and a warm mixed layer of the upper
ocean will sustain the hurricane)-- just like a Carnot heat engine.
(Danielle Dixson) As more
and more carbon dioxide enters the
atmosphere, the
ocean is acidifying too quickly for sharks to
keep up.
Everything else that might try to alter that base level simply results in atmospheric circulation changes (
atmosphere includes
oceans for this purpose) that adjust the rate of conversion between kinetic
and potential energy so as to
keep the base level of system energy content stable.
Apart of course from the amount of greenhouse gases we
keep pumping into the
atmosphere, there are mainly three factors that determine the amount of warming we will experience in the near future: CO2 climate sensitivity,
ocean thermal inertia,
and... Continue reading →
What you have described, in your «thought experiment»,
and your calculations,
and your ramblings, is how a warmer
atmosphere might
keep more heat (from the sun) in the
oceans for longer, sort of like a blanket.
''... Through a series of processes involving, among others, ice ages,
ocean algae,
and weathering rock, the earth has managed to
keep the amount of heat - trapping carbon dioxide in the
atmosphere,
and hence the temperature, at a relatively stable level.
These forces
keep stirring the
ocean and atmosphere.
I don't know about heat sloshed under the poles but I need a slosh of scotch heat after this; since you know Bob well you will know he has discussed a reemergence mechanism to explain how the
ocean can put heat into the
atmosphere in an El Nino year yet
keep warming itself;
and despite the fact that the
oceans are a complex eddying mess the fact remains that AGW is a top down heater; if the
oceans were going to be heated by AGW a shallow
ocean would be heating; but it ain't:
Lam
and team used climate models from the Intergovernmental Panel on Climate Change to examine the economic impacts of climate change on fish stocks
and fisheries revenues under two different emissions scenarios: a high - emission scenario, in which the rates at which greenhouse gases are pumped into the Earth's
atmosphere continue to rise unchecked,
and a low - emission scenario under which
ocean warming is
kept below two degrees Celsius.
«You can't
keep pumping heat into the
ocean,» says England, «shoveling it in year after year, without eventually seeing that heat interacting again with the
atmosphere and warming the
atmosphere.
And if talking about large atmosphere - Venus hits that threshold, whereas Earth does not, the contraction of atmosphere will heat the planet - or said differently as a planet cools it's atmosphere and oceans and / or land will contract keeping heat temperature consta
And if talking about large
atmosphere - Venus hits that threshold, whereas Earth does not, the contraction of
atmosphere will heat the planet - or said differently as a planet cools it's
atmosphere and oceans and / or land will contract keeping heat temperature consta
and oceans and / or land will contract keeping heat temperature consta
and / or land will contract
keeping heat temperature constant.
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.
Keep in mind that ENSO is a coupled
ocean -
atmosphere process
and that the trade winds
and the temperature gradient (not anomalies) of the tropical Pacific interact.
But the truth is that the
ocean recirculates that extra load
and, at some point, will release some of it back to the
atmosphere, where it will
keep raising temperatures, even if future carbon dioxide emissions were to be much lower than they are now.»
I said it was a consequence of the fact that the two boundaries of the
atmosphere — outer space above us
and the
ocean below — are an infinite
and a near - infinite heat - sink respectively, which helping to
keep the atmospheric temperature within a narrow interval.
We'd prefer a return to that stability rather than an uncontrolled experiment in what would happen to biospheric system services of value to humans if we
keep pumping multiple gigatonnes of new CO2 into the
atmosphere and the
oceans.
As most of the excess heat
and greenhouse gases from climate change or even chemical pollutants will go into the
ocean,
ocean large - scale currents will recirculate that extra load
and, at some point, will release some of it back to the
atmosphere, where it will
keep raising temperatures, regardless of future carbon dioxide emissions scenarios.
I can point people at the sharp
and rapid CO2 rise in the
atmosphere and inform them that not only has a pH drop in the
oceans been measured, but that it is expected under basic chemistry
and that will continue as we
keep emitting.
The analysis by Trenberth
and Fasullo (2010) of the total energy budget, which reveals missing energy in recent years because the
ocean heat content has not
kept up with the excess of incoming radiation at the top of
atmosphere, reveals shortcomings in the total observing system.
Regarding heat flow between the
ocean and atmosphere,
keep in mind that hte average surface temperature of the global
oceans is about 17C, which is warmer than the near - surface
atmosphere (on average).
Thus, in numerical weather prediction out to a mere few days, one tends to neglect the intrinsic variability of the
oceans and concentrates on the
atmosphere, with sea surface temperatures prescribed as a boundary condition; the sea surface temperature field can either be
kept constant in time or allowed to vary in some prescribed manner, e.g., according to a diurnal cycle.
Not to mention, why do skeptics continue to ignore, dismiss, or simply «argue with» by any means possible, the far more important fact that most of the increased absorbed heat energy is going into warming the
oceans, not the
atmosphere (thus
keeping the ambient air temp rise from registering as high as it otherwise would,
and impacting FUTURE climate far more).
-- In the end or at the Top of the
Atmosphere (TOA), say the Exosphere, each square meter will radiate as LWIR; if the plan is correct, all the incoming / absorbed Solar Irradiation (SI) = 240 W / m ² + all the 324 W / m ² which the Earth had stored in
Oceans, Landmasses
and Atmosphere just to
keep warm during times when there is no SI which averages near enough 6 months every year.
Abstract The major biogeochemical cycles which
keep the present - day Earth habitable are linked by a network of feedbacks which has led to a broadly stable chemical composition of the
oceans and atmosphere...
«The big question to this day is, what fraction of that carbon gets out of the surface water
and into the deep
ocean where it's sequestered for long periods of time,
keeping it out of the
atmosphere?»
Though cloud - seeding, for example, would cool the earth, it would also lead to more acidic
oceans, since the amount of CO2 in the
atmosphere -
and therefore the CO2 absorbed into the seas - would
keep increasing.
Oceans continue emitting power during nighttime,
and it is the mechanism by which the
atmosphere on the night side of the Earth is
kept warm.