[William Tell]

Fred Nerks said: "... the 'climate' must have changed very quickly, blitzschnell and catastrophic."

Maybe.

But I think the grammar is a bit ambiguous in the linked article. Did the scientists find "insects ranging from butterfiles to spiders" or did they find "DNA from ...insects ranging from butterflies to spiders"?

[Fred Nerks]

The data shows that natural variations in Earth's orbit—obliquity, or how tilted the planet is in relation to the sun—have determined global temperatures in the past, they report...

natural variations in Earth's obliquity...

IMO the entire article is a fascinating example of ambiguity!

[Fred Nerks]

related:

Oldest DNA Ever Recovered Shows Warmer Planet: Report (hundreds of thousands of years ago)
Brietbart.com ^ | Jul 5 03:14 PM US/Eastern | AFP

http://www.freerepublic.com/focus/f-news/1861531/posts

[Cuttnhorse]

Did the scientists find "insects ranging from butterfiles to spiders" or did they find "DNA from ...insects ranging from butterflies to spiders"?

From the article: Biologist Eske Willerslev of the University of Copenhagen and an international team of colleagues discovered DNA from alder, spruce, pine and yew trees at the glacier's base as well as insects ranging from butterflies to spiders. This is the "first evidence for a forested southern Greenland," Willerslev says.