[SunkenCiv]

Climatologist Andrew Weaver of the University of Victoria says the notion that an extraterrestrial impact caused the Younger Dryas "requires an extraordinarily huge leap of faith." He says there were many climate swings during the last glacial cycle; the mini-ice age was simply the last of them and does not require an extraterrestrial explanation.

Actually, he's dead wrong.

[muawiyah]

And that he is ~ wrong, wrong, wrong ~ the Lesser Dryas affected North America (almost exclusively) ~ and interrupted the normal ice cap meltdown cycle that would otherwise have happened.

[RightWhale]

Mr. Mitrovica notes that it took almost a decade before scientists accepted geologist Walter Alvarez's evidence that the iridiumrich layer he found

Entertaining story for physicists on lunch break, but the story has not been completely accepted.