Earth's Icy Past Has Yielded Bountiful Food & Beauty

Next time you open the refrigerator and stare at the options, be grateful. Let that slight draft of cool air remind you of Earth's ice history and how that ice has formed global features that allow the planet to grow food to feed billions of people.

Ice ages have been rare in Earth's 4.56-billion-year history; ice age cycles have been even rarer. But only an ice age cycle permits the existence of a large human population capable of launching and sustaining...


is an astrophysicist and the founder and president of the science-faith think tank Reasons to Believe (RTB).

This article originally appeared in Salvo, Issue #33, Summer 2015 Copyright © 2020 Salvo |