Not exact matches
Ice sheet retreat continues until a
new equilibrium temperature state is reached, one determined largely by the end -
point of atmospheric CO2.
In other words, the «tipping
point» is already far exceeded and there can not be any
new equilibrium of production / neutralization
of greenhouse gases.
Ice sheet retreat continues until a
new equilibrium temperature state is reached, one determined largely by the end -
point of atmospheric CO2.
For example, if the Earth got cold enough, the encroachment
of snow and ice toward low latitudes (where they have more sunlight to reflect per unit area), depending on the meridional temperature gradient, could become a runaway feedback — any little forcing that causes some cooling will cause an expansion
of snow and ice toward lower latitudes sufficient to cause so much cooling that the process never reaches a
new equilibrium — until the snow and ice reach the equator from both sides, at which
point there is no more area for snow and ice to expand into.
When pulses
of warm water are strong enough to rise over the shelf's outer ridge, that warm dense water then flows downward to the grounding
point of the glacier and remains there until a
new equilibrium is established via basal melting and a retreating grounding
point.
Also note that human induced warming probably will trigger natural C02 / methane emissions leading to further warming so anthropogenic source will probably play a decreasing role in the amount
of C02 in the atmosphere as the planet moves to a
new equilibrium point.
If CO2 and H2O molecules now are cooled below the previous
equilibrium point by having their radiation allowed to escape to outer space, then I believe these molecules must then tend to absorb more energy than yield energy with each interaction with the other components
of the atmosphere until that atmosphere as a whole reaches a
new thermal
equilibrium where the net radiation going out and the net radiation coming in (primarily from the sun and the surrounding atmosphere) is the same.
The high thermal inertia
of the oceans means there is a slow climb in temperature to the
new equilibrium point.
In short the PETM seems to contradict the AGW
point of equilibrium climate sensitivity based on a
new level
of forcing through CO2 increase..
Nassar
points out that investmentdisputes under the
new law «now may be referred to a ministerial committee which has the power to settle any differences that may arise in respect
of contracting procedures, rescheduling, re-negotiating the state - investment contracts to maintain
equilibrium».