Translation: Currently it is mathematically impossible to quantify
the actual effect of clouds.
Not exact matches
The
actual health
effects of these «personal
clouds» remain unknown.
Ionisation
of the air in
cloud chambers does demonstrate increase formation
of cloud condensation nuclei but it is not clear that in the
actual atmosphere in the presence
of natural CCN this
effect will manifest itself in any significant changes.
When you compare this with the
actual surface temperature
of ~ 288 K and the temperature in absence
of the greenhouse
effect but no change in albedo
of ~ 255 K, what we can say is the follows: The greenhouse
effect due to all the greenhouse gases (water vapor,
clouds, and the long - lived GHGs like CO2 and CH4) raises the temperature
of the Earth by an amount
of ~ 33 K (which is 288K — 255K); the albedo due to
cloud reduces the temperature by ~ 17 K (which is 272 K — 255 K); the net
effect of both the GHGs and the
cloud albedo is ~ 16 K (which is 288K — 272K).
And the press releases from CERN have also been quite factual, simply stating that the
cloud nucleation mechanism by cosmic rays in the presence
of certain naturally occurring aerosols has been validated, but cautioning that this does not mean that this
effect in our
actual climate system has yet been confirmed.
Putting the two formulas together, a theoretical additional factor
of 2.06 multiplier due to the greenhouse
effect becomes an
actual multiplier
of 0.226, thanks to negative factors like increases in albedo due to
clouds, decreases in lapse rate, etc..
However, the
actual magnitude
of the
effect depends on many other factors such as
cloud change during readjustment.