That is critical:
Fire weather index FWI:
"By decomposing FWI, we show that temperature and humidity dominate the recent increase in fire weather risk, supported by a substantial elevation in vapor pressure deficit over the pan-Arctic region"
In other words the Arctic will burn as it is dried out
iopscience.iop.org
Attribution of observed pan-Arctic extreme fire events to anthropogenic forcings, Fiedler, Lukas, Barkhordarian, Armineh, Brovkin, Victor, Baehr, Johanna
