Big if true. I’ve heard this claimed before, and if this were actually proven up I’d be very interested, but so far I just haven’t seen it.
I have seen cherry-picked stuff, like a study referenced on NASA’s website that showed certain Antarctic ice sheets actually grew in recent years (though when you read past the headline, the study stopped far short of saying this was evidence that global warming was false, and the lead author actually said he expected the ice to reverse and start melting relatively soon)