> Looks like this part is political: “for the physical modelling of Earth’s climate, quantifying variability and reliably predicting global warming”
All this is saying is that the predictive models they devised were proven correct given climate behavior today, e.g rise of temperatures and a general uptrend in severe weather activity that followed.
And this part is actual science: “for the discovery of the interplay of disorder and fluctuations in physical systems from atomic to planetary scales”