global warming is not a good example... so many groups of scientists explaining it is fake, for decades...

decades of "the world is going to end in 10 years" just to move the goalposts again. First, it would freeze, then warm, then "change", now, "boil"

a few centuries ago the world was cooler. a few centuries back, warmer, then cooler, then warmer again. And not as in "the average was 0.5 deg more or less", but as in "crops that did grow do not grow anymore", "we used to walk over the frozen Thames", "we have to abandon Groenland, it was much 'Groen' before". CO2 as cause of global warming never was consensus, on the contrary...

the golden rule of the 21th century:

if the solution makes you a miserable slave, the problem is fake.