- Editors' Pick
Coastal cities inundated, farming regions parched, ocean currents disrupted, tropical diseases spreading, glaciers melting—an artificial greenhouse effect could generate countless tribulations.
If Earth’s climate changes meaningfully—and the National Academy of Sciences, previously skeptical, said in 2005 that signs of climate change have become significant—there could be broad-based disruption of the global economy unparalleled by any event other than World War II.
Economic change means winners as well as losers. Huge sums will be made and lost if the global climate changes. Everyone wonders what warming might do to the environment—but what might it do to the global distribution of money and power?
Whether mainly natural or mainly artificial, climate change could bring different regions of the world tremendous benefits as well as drastic problems. The world had been mostly warming for thousands of years before the industrial era began, and that warming has been indisputably favorable to the spread of civilization. The trouble is that the world’s economic geography is today organized according to a climate that has largely prevailed since the Middle Ages—runaway climate change would force big changes in the physical ordering of society. In the past, small climate changes have had substantial impact on agriculture, trade routes, and the types of products and commodities that sell. Larger climate shifts have catalyzed the rise and fall of whole societies. The Mayan Empire, f...