A side-effect of global warming.

[Thumpalumpacus]

We're not regressing back to something we never were.

Man basically always ate meat, even before he discovered fire.

Perhaps you should do some reading into this before going all caveman on us.

Dear, you're speaking of evolution, and not the climate.

So were you, whether you know it or (more likely) not.

Man has always to our knowledge been an omnivore, and that was the point of his question.