Sentences with phrase «orbital variation alone»

But some time around 850,000 years ago, the cycle grew to 100,000 years, and ice sheets reached greater extents than they had in several million years — a change too great to be explained by orbital variation alone.

Not exact matches

Scafetta and West want the orbital forcing alone to explain all of the ice age variations?

If some scientists built a countering hypothesis tying in the current stand alone challenges solar and orbital variations, mistakes in data, etc, I believe it would help to advancing understanding by encouraging two things.