Carbon budget-sizing is now more a precautionary-policy-issue (than a scientific-probability-issue). Moreover, the remaining carbon
budget that is safe & with better odds of success than not, also needs to be shared internationally for that success to occur.
Consequently: -
Any inference drawn that multiple feedback emissions/effects are sufficiently accounted for in Table 2.2 procedure needs careful consideration.
Temperature-rise is accelerating faster than the acceleration of the atmospheric concentrations of CO2
The ice-caps, the glaciers, the permafrost are already melting; fires, droughts, floods and storms are increasing.
Any further rises in concentrations and temperature will only compound all these increases.
Consequently, uncertainty is also increasing as to whether this can even be arrested in time or not.
In a nutshell, the situation is becoming less & less precautionary & more & more precarious.
It hardly favours setting out the
full array of carbon-budget-inflation in table 2.2 aggravated by the odds
that are given
because of the entirely questionable Additional Warming Estimates on which they are based.
All this is argument in favour of taking seriously what Greta Thunberg quoted from IPCC 1.5
and working for
an Alliance for UNFCCC-Compliance asap at stringent rates of Contraction & Convergence.
There is quite obviously trend-average-acceleration in all these data-sets.
There is also a quite extraordinary effort to deny this. Why?