It's funny, because as a kid I used to say "but how do we know it's man made and not a natural cycle", and my father used to say we don't.
Now he says it's all a scam and we somehow do know.
He's right-leaning.
Crazy how we found that out in my lifetime, let alone his.
Some dork on here showed a graph that showed the many spikes in temperature that supposedly happened over time. He neither decried that data as totally unreliable, nor acknowledged the current spike seems to be way more severe than the previous ones - even on a graph that tries to hide that fact.
I wish I could reproduce that dork's graph.