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Lead in Portland’s drinking water.

Rising temperatures reducing the flow of the Colorado River.

A new study by the US Geological Survey finds the river’s flow has shrunk by about seven percent over the past 30 years. As air temperature rises due to increasing emissions of greenhouse gases, more water is sucked into the atmosphere from the snowpack and the river itself instead of flowing downstream. The amount that has evaporated is equal to approximately 24 percent of the total amount of California’s annual Colorado River allocation.

Misery in slow motion: The deep and long lasting effects of drought.  New World Bank study.

Published by

Mark Kanazawa

I am Wadsworth A. Williams Professor of Economics at Carleton College, Northfield, MN