Water

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

Data center complex under construction in field surrounded by green forest in Texas.

Denver bans new data centers for one year

The moratorium doesn't affect a massive data center project already underway.

May 20, 2026 - NBC News 9

A worker fixes a large pipe

Austin has saved 1.2 billion gallons of water with new smart meters

As Austin works to upgrade the city's pipes, Austin Water’s My ATX Water program also offers near-real-time data, detecting and alerting customers to potential leaks.

May 18, 2026 - Smart Cities Dive

Lake Powell and dam surrounded by red rocks with visible 'bathtub rings' during drought.

Colorado River flows will reach historic lows this summer

Officials have started reducing water release from Lake Powell to prevent water levels from becoming too low for hydroelectric production.

May 10, 2026 - Reuters

Woman cellist sitting on chair and man standing at table with music mixing equipment inside darkened cistern with concrete columns and purplish lighting.

A 1920s Poughkeepsie cistern sees new life as art venue

For decades, it secured the city's water supply. Now, it could become its hottest new performance venue.

May 5, 2026 - Chronograph

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

Phoenix and Tucson create emergency water reserve, anticipating Colorado River cuts

The Secure Water Arizona Program will allow participating cities to use a reserve of water or make agreements to buy it from other jurisdictions.

May 3, 2026 - KJZZ

Looking up at neoclassical Maine capitol dome in Augusta, Maine.

Maine legislature passes nation's first data center moratorium

If approved by the governor, the bill would bar new data centers until November 2027 and create a new state council tasked with protecting ratepayers and minimizing risks and impacts.

April 16, 2026 - Bloomberg Law

View of Port Washington, Wisconsin buildings on lakeshore.

Voters in Wisconsin city pass nation's first data center referendum

The measure requires voter approval for tax incentives to new data centers.

April 9, 2026 - NOTUS

Sign for NCAR Supercomputing Center in Cheyenne, Wyoming.

Wyoming touts ‘ample land, firm power’ in bid to woo data centers

The state is taking a proactive approach to data centers, hoping the tech behemoths will bring jobs and economic development.

April 5, 2026 - Realtor.com

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

Data center in Iowa at sunset.

Iowa County Passes Restrictive Data Center Ordinance

A new Linn County ordinance requires data center builders to conduct environmental reviews, limit light pollution and noise, and compensate the county for infrastructure costs.

March 2, 2026 - Inside Climate News

Kansas City, Missouri skyline at dusk.

Kansas City Adopts Milestone Data Center Zoning Rules

A new zoning ordinance classifies data centers as industrial facilities, triggering stricter zoning and permitting requirements.

February 8, 2026 - Smart Cities Dive

Birds flying over flat irrigated farmland in Imperial Valley, California.

Battle Over $15 Billion in Data Centers Erupts in Rural Southern California County

Imperial County residents and local officials oppose two proposed data centers that would significantly impact natural resources.

February 6, 2026 - SFGate

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

New wood-frame single-famly houses being built in Arizona with desert mountains in background.

Planning Trends for 2026: States and Cities Take Initiative, Passenger Rail Gains Steam, and the Costs of AI Revealed

With federal funding for everything from transportation projects to housing assistance under threat, city and state governments are poised to take a stronger role in building strong, resilient local economies and public services.

January 25, 2026 - Diana Ionescu

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

Owens Owens River in Bishop, California with water spilling in from Pleasant Valley Dam.

California is Out of Drought for First Time in 25 Years

The state’s reservoirs are reaching capacity for the first time in decades, but more rain could prompt flooding in downstream communities.

January 14, 2026 - USA Today

Shasta Dam with deep turquoise water in reservoir behind it in northern California.

California’s Largest Reservoir Rose to 77% Capacity After Recent Rains

Almost all of the state’s reservoirs are nearing capacity after significant storms passed across the state.

January 7, 2026 - The Mercury 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.

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.