No, they didn't. Stop making crap up. Nobody outside of your commie cult falls for it, and it just makes you look desperate and dishonest.
Most of your clowns are still screeching that a new ice age will arrive tomorrow. Your side can't even get the direction of the change right. You've all been as wrong as it's possible for humans to be, for over 40 years running now. That's why the whole world laughs at you, and correctly classifies you as corrupt poltiical hacks.
Mainstream climate science, in stark contrast, has gotten everything right since the 1970s. That's why mastream climate scientists have been assigned such credibility by the world, because they've earned it through their record of success.
If right wing politics vanished today, denialism wiould instantly vanish along with it, becuase denialism is entirely politics.
If left wing politics vanished today, climate science wouldn't change a bit, because it's actual science.