Sure is. Which is why we should cut them
zero slack and need to, and frequently, every day.
They won't change, of course -- Marxists almost never do -- but those who are not ideologues and/or who have some rudimentary concept of empirical science and methods will sooner or later see the light of day, and it is these two groups who are and will continue to be the ''swing voters'' on the subject.
Keep in mind what Gorbachev is doing now...
With the failure of his communist empire he is now running an environmental organization.
The enviros - generally watermelons - figure if they can't delude you into obeying them with promises of a socialist utopia will try to frighten you into obeying them with incessant scare mongering. We've gone through how many environmental catastrophes that never actually happened now? Resource depletion, Malthusian starvation, global cooling, and now we are on global warming...
I wonder what will be next after global warming...maybe global superstorms? A failing sky? Mutant angry wolves attacking boys named Peter? Tinfoil hat shortages?