Major Western Water Source May Dry Up By 2021

Lake Mead -- a major water source for the western United States -- could go dry by 2021, according to a new report.

1 minute read

February 13, 2008, 12:00 PM PST

By Nate Berg


"The scientists, working at the Scripps Institution of Oceanography in San Diego, said the West's largest storage reservoir faces increasing threats from a combination of human-induced climate change, growing populations and natural forces like drought and evaporation."

"If drought deepens and water use climbs, the researchers said there is a 50 percent chance Lake Mead will run dry by 2021 and a 10 percent chance it will run out of usable water by 2014."

"Lake Mead and its upstream sibling, Lake Powell, help manage water resources for more than 25 million people in the seven states, including Arizona, that rely on the Colorado River for water and power."

"The two huge reservoirs have been the subject of numerous hydrology models in recent years, but none forecast a dry Lake Mead within 15 years."

Wednesday, February 13, 2008 in The Arizona Republic

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

A coal power plant in Iowa billows smoke into the air.

Nation's most wind-powered state turns to coal as data centers increase energy demand

For the first time in decades, Iowa has increased its generation of coal power.

1 hour ago - Inside Climate News

A sign on a fence describing the rain garden behind it.

NYC cools commuters with city's first rain garden above a bus stop

New York City officials say the plants in the rain garden can absorb 16 gallons of rainwater during heavy storms.

2 hours ago - Gothamist

A map showing Brightline West's intended route from  Las Vegas to Rancho Cucamonga, California.

Brightline West’s future may rely on $6 billion federal loan

The company has until Nov. 2 to make a $400 million equity investment into its proposed high-speed rail line.

3 hours ago - Smart Cities Dive

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.