Assume that over the next 1,000 years temperatures cool significantly. What would be the most likely effect on global human population?

a. expansion of coastal lands seaward, massive migrations of southern latitudes and sever restriction in the amount of temperate farmland for food production.

b. flooding of coastlal lands, an expansion of populations into northern Canada, Sibieria, and northern China as temperate farmland expands north increasing food production

c. Canadians, Russians, and Chinese would stay put and adapt to living year round on pack ice like current Eskimos do in the winter.