Think about it...our bodies are designed to exist in a tropical climate, close to water...where plants exist all year round. The eskimos bodies had to evolve in order to withstand the arctic. Naturally, people are designed best for warm climates where plants are plentiful.

Also consider that there are winter/fall vegetables as well. Ever heard of winter squash? Borsht is a soup made from beets that was created in Russia, where it is damn cold. Beets are harvested in the late fall, early winter.

There are so many different ways to look at everything. I think it's best not to form too many strong opinions. Always question, rarely (or never) conclude.