This transcript has been edited for length and clarity.
California and Arizona are currently fighting each other over water from the Colorado River. But this isn’t new — it’s actually been going on for over 100 years. At one point, the states literally went to war about it. The problem comes down to some really bad math from 1922.
To some extent, the crisis can be blamed on climate change. The West is in the middle of a once-in-a-millennium drought. As temperatures rise, the snow pack that feeds the river has gotten much thinner, and the river’s main reservoirs have all but dried up.
But that’s only part of the story: The United States has also been overusing the Colorado for more than a century thanks to a byzantine set of flawed laws and lawsuits known as the “Law of the River.” This legal tangle not only has been over-allocating the river, it also has been driving conflict in the region, especially between the two biggest users, California and Arizona, which are both trying to secure as much water as they can. An... Read more