Water Conservation

The Arkansas River surrounded by cedar trees.

Google will fund removal of 2000 acres of trees in Oklahoma to save water while building new data center

The company has invested $30 million into projects intended to address Oklahoma’s water shortage.

September 2, 2026 - KOCO

Person in galoshes spraying a garden with a water hose.

Climate change could double household water costs in some cities, study finds

New research suggests that climate change-related stressors are straining municipal water systems.

August 11, 2026 - Kevin Hardy

Hydroelectric generating facility and historic site known as the Arizona Falls on the Arizona Grand Canal in Phoenix.

Arizona prepares to tap into emergency water supply as it braces for Colorado River cuts

The Salt River Project has been collecting nearly 4 million acre-feet of water since the mid-1990s.

August 5, 2026 - Arizona Central

View from Hoover Dam of dam columns and Colorado River with water line visible above the water.

Federal proposal calls for mandatory water cuts to Arizona, California and Nevada

The Bureau of Reclamation stepped in after states failed to come to an agreement over Colorado River water use reductions.

August 2, 2026 - Associated Press

Lake Powell surrounded by red rocks with low water level.

Lake Powell reaches lowest water level on record

Reservoirs along the Colorado River are seeing some of the lowest water flows ever, prompting questions about the future of communities in the basin.

July 3, 2026 - Meteored US

Aerial view of turquoise water holding tanks in desalination plant in San Diego, California.

New agreement would let Arizona, Nevada use water from California desalination plant

The plan will help reduce strain on Lake Mead during extreme drought periods.

June 5, 2026 - Nevada Current

Exterior of the Tillman Water Reclamation Plant which is adjacent to Suiho-En, a public Japanese garden in Van Nuys, CA.

Southern California water agencies accelerate reuse and recycling projects

From desalination to wastewater recycling, California officials are promoting more reclamation projects as the Southwest remains in drought.

June 4, 2026 - Engineering News-Record

Man in rain gear rides a bicycle on a bike lane lined with grassy landscaping in Cardiff, Wales on a rainy day.

This UK city's bike lanes double as rain gardens and wildlife habitats

Cardiff is combining mobility infrastructure with greening measures to help conserve water, clean the air, and provide shade and greenery.

May 26, 2026 - Bloomberg CityLab

Two long concrete basins at Irvine Ranch Water District Chlorine Contact Basin

Where water recycling is working

Orange County, California and Las Vegas are leaders in water recycling in the United States.

May 24, 2026 - Reasons to Be Cheerful

Utility worker stands in flooded New York City intersection roped off with yellow caution tape speaking on walkie talkie.

Public works officials indicate alarming decline in condition of water and sewer systems

Increased awareness of infrastructure issues combined with aging equipment and more extreme weather are leading more public works officials to feel their local systems are 'unsatisfactory.'

May 19, 2026 - Smart Cities Dive

Cyclist paused in front of public water fountain in Denver, Colorado.

Denver Considers Data Center Moratorium as it Aims to Reduce Water use by 20%

The city is requiring restaurants and other businesses to cut back their water use and could pause new data center development until it addresses them in its zoning code.

April 2, 2026 - The Cool Down

Google Street View image of cranes at construction site for data center in Memphis, Tennessee.

Memphis Data Center Will Harness Wastewater for Cooling

The xAI-owned Colossus facility uses as much water as 10,000 households.

March 17, 2026 - Governing

People swimming near shore with parked kayaks on Colorado River beach in Arizona.

Colorado River States Fail to Strike Deal After ‘Historic Meeting’

The Colorado Basin states have until February 14 to agree on new water conservation measures.

February 4, 2026 - Source NM

Abandoned boat docks on the Great Salt Lake. Due to drought and poor irrigation practices this once massive lake is disappearing.

Dust From Exposed Great Salt Lake Bed Threatens Utah’s Air Quality

The lake ended 2025 with the third-lowest water level in a century.

January 21, 2026 - One Green Planet

Neo-Spanish style new house with brown garage door and xeriscaped small yard.

Nevada Law Requiring Removal of ‘Useless’ Grass Has Killed 100,000 Las Vegas Trees, Lawsuit Claims

The lawsuit alleges that the removal of ornamental grass has damaged the city’s tree canopy.

January 19, 2026 - Independent

Cattle graze on farmland in the Hualapai Valley north of Kingman, Arizona.

Arizona Tightens Groundwater Restrictions to Rein in Agribusinesses

The state is creating an ‘active management area’ in the western part of the state, where agribusinesses including a Saudi alfalfa exporter have practically free rein over water supplies.

January 16, 2026 - The Independent

Colorado River at Lake Mead with low water line visible on rocks.

Deadline Nears for Colorado River Water Sharing Agreement

Water officials from the seven Colorado River Basin states are still at odds over how to manage dwindling water resources as current regulations are set to expire in February.

December 24, 2025 - News From the States

Close-up on back of yellow truck putting down road salt on icy road.

Winter Road Salt is Making Waterways Toxic to Wildlife

Salt used to clear streets is accumulating in local creeks and rivers and seeping into groundwater, contaminating fresh water supplies.

December 21, 2025 - WHYY

Tillman water reclamation facility in Van Nuys, California with Japanese garden surrounding glass modernist building.

LA Will Double its Wastewater Recycling Capacity to Serve Half a Million Residents

A new wastewater treatment facility will be able to process 45 million gallons of water per day.

November 11, 2025 - Los Angeles Times

Person in yellow safety suit and white helmet kneels to examine water samples outdoors on a lake shore.

USGS Water Science Centers Targeted for Closure

If their work is suspended, states could lose a valuable resource for monitoring, understanding, and managing water resources.

May 1, 2025 - Inside Climate News

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.

Senior Planner

City of Thousand Oaks

Community Development Director

City of Wisconsin Rapids

Professor of Urban Planning

Harvard University Graduate School of Design

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.