Well, gee, I was once one of those gullible types that believed in the coming ice age. My second or third grade teacher told us all about it, including the two-mile thick ice caps that would reach as far south as Minneapolis. She wouldn’t lie to us, would she? Living in a Minneapolis suburb, that day after school I looked up into the sky trying to imagine two miles of ice covering the school. Would the ice be thicker than the clouds were high?

It made me wonder whether Arizona would give ex-Phoenix residents priority as refugees over the other northerners and Canadians fleeing the coming ice.

I think you may be able to understand my immediate skepticism of global warming, in the 1980s, by imagining the reaction of today’s school children by sudden news that it isn’t global warming but the coming ice age (due any millennium now) that we should be worried about.

How do people react when the supposed experts completely reverse themselves on such important and urgent issues that have been drilled into them for their entire lives? That’s right: skepticism. Which is it, ice or heat? (It turns out that either way they say that we are all doomed.)

Or do the supposed experts not know and have just fed us all BS for the past half century or so? Hmm. That would certainly explain why the experts have such trouble predicting our doom a mere dozen years into the future. Didn’t the boy who called wolf also raise skepticism in the local villagers?

https://en.wikipedia.org/wiki/The_Boy_Who_Cried_Wolf#The_fable
“this shows how liars are rewarded: even if they tell the truth, no one believes them.”

In our case, no one has ever seen the metaphorical wolf. We were warmer in the Medieval Warm Period and colder in the Little Ice Age, and we did not meet our doom in either of those times. We adapt to new conditions, even if we all have to move to Arizona.