So CO2 changes are the root cause of
whatever water vapour feedback winds up occurring.»
Not exact matches
Of course Ferdinand is right not to project catastrophism onto anthropogenic CO2 levels for as you likely know there is a inverse logarithmic relationship between changes in temperature and CO2 levels such that without the assumed positive
feedback from
water vapour there is no chance of runaway global warming, tipping points or
whatever.
A temperature rise (from
whatever cause) would evaporate more
water from the sea into the atmosphere, this would cause more warming and set up a
feedback of ever escalating temperatures and
water vapour levels.