Not one of them seems to realise that the only thing that has ever stopped the UK (and other nations around the North Atlantic) from having the same winters as Moscow (at a similar latitude) is the twin effects of the oceanic Gulf Stream (North Atlantic Conveyor) and the atmospheric Jet Stream over Europe, both bringing warm water and warm air currents from subtropical areas of the North Atlantic.
The current winter whiteout is because the Jet Stream has shifted south. Shifts in air currents are a predicted effect of global warming, and since these currents help distribute equatorial heat to the poles, it is totally consistent with the science of global warming that changes in these air currents will lead to less effective thermal redistribution and thus colder winters at higher latitudes.If they think this is counterintuitive, wait until the Gulf Stream shifts and/or shuts down. The atmospheric/air currents are largely dependent upon the oceanic currents (aka the Global Ocean Conveyor) that carry warm water away from the equator to the poles. The effects of global warming on the oceanic thermohaline circulation that drives these currents (and particularly the Gulf Stream) are being studied in increasing detail and abrupt shifts in its force, extent, (and its eventual cessation altogether) have happened in the past and are predicted effects of global warming (more fresh water from icecaps and glaciers entering the Northern oceans leads to less salty oceans leads to shutdown of Oceanic Conveyors).
This winter will seem mild in comparison. And while Eurasia and North America freeze, the tropics will bake in drought. Climate chaos, not just climate change, will be what we have then.