Mark Follman

The future is looking parched for the roughly 30 million Americans who rely on the Colorado River, according to a report in the Wall Street Journal. Denizens of Las Vegas, Phoenix and Los Angeles, this especially means you:

Water managers warn that Lake Mead, the West’s largest and most important reservoir, remains perilously near the level of 1,075 feet at which the U.S. Secretary of the Interior would likely declare a water shortage, for the first time in the nearly century-old history of the Colorado River system. Such a shortage would parch Nevada, Arizona and California with severe water-use restrictions. There alone, some 20 million people depend on Lake Mead’s supplies.

Despite this year’s rain-soaked winter and a modest rise in the lake, the region still faces a deep deficit from a 12-year drought: “Lake Mead’s water level now stands at 1,096 feet, near its lowest point since the reservoir began filling in the 1930s and 110 feet below when the drought began in 1999, according to the U.S. Bureau of Reclamation. The lake last rose in 2005.”

Statistics can be elusive. One of the best ways to realize the change is from directly on the lake itself. Last August I took a houseboat trip with some friends on Lake Mead, where I snapped some photos showing the drop in the water line. The lake is enormous — but so is the space no longer filled with water:

In the west we’ve peered into the future, which is now. It is conservation.

(According to the water footprint “calculator” linked above, which uses criteria ranging from shower times to car washing to meat consumption, my household of two rates at approximately 12 percent below the daily average for water consumption across American households. Not bad, though as I suspected there’s still room for improvement. The site suggests specific areas for potential progress based on your questionnaire answers.)