[justsubmit]

That's not a scientific claim, because it's not falsifiable. It's a pseudoscientific one, based on computer models that have not proven accurate, and which they admit low confidence in.

Therefore, to say, "However big they seemed compared to the past, they're nothing compared to the future," is clearly unscientific, alarmist propaganda. Of course, it's not surprising, given that some scientists have advocated misleading the public on this matter for over 20 years.[0]

0: https://news.ycombinator.com/item?id=21115712