Local opinion: Why Arizona keeps approving growth amid water collapse

Arizona is facing a tipping point. For decades, the region chased a continuous boom cycle, approving massive projects faster than almost anyone could track. Now, in 2026, that narrative is colliding with a much harder reality. The Colorado River, the lifeline that made large-scale desert growth possible, is shrinking. Yet the systems that reward expansion continue to move as if water were a solved problem. This has created an accountability gap that is becoming impossible to ignore.

Across the Valley, the development pipeline is staggering. Taiwan Semiconductor Manufacturing Company is expanding its north Phoenix campus to fuel the global demand for AI chips. Nearby, projects like NorthPark and Halo Vista promise thousands of new homes and millions of square feet of commercial space. Peoria is working on its Innovation Core, aiming to transform thousands of acres of state land into a semiconductor supply-chain hub anchored by Amkor’s multibillion-dollar facility. Between resorts, logistics hubs, and redeveloped malls, the growth is explosive. These projects are celebrated as economic milestones because they bring jobs and tax revenue. In these boardrooms, water is often treated as a box to be checked rather than a binding constraint on the future.

This blind spot isn't an accident. Our current reward systems favor growth over balance. Cities get immediate revenue from property taxes and construction jobs. Politicians get visible wins and ribbon cuttings, while investors see returns measured in months. Conservation offers the exact opposite. The benefits of restraint are delayed, invisible, and politically difficult. Protecting a water supply rarely produces a headline or a quarterly profit. When the incentives all push in one direction, it is hard to change course.

Meanwhile, the river is moving in another direction entirely. Federal modeling projects Lake Mead falling to roughly 1,036.5 feet by late 2027. This would place the reservoir deep in Tier 2b shortage territory. Arizona already absorbs annual reductions of 512,000 acre-feet, which hits Central Arizona Project users the hardest. Under the worst-case scenarios, some models project cuts of up to 57 percent to Arizona’s total allocation. Central Arizona Project General Manager Brenda Burman has warned that the harshest federal alternatives could reduce deliveries to Phoenix and Tucson by as much as 98 percent. These aren't just theoretical warnings. They describe a future where the region’s primary water supply nearly disappears.

The ethical dilemma comes from the collision of these two paths. New developments create permanent water obligations that will last for decades. The benefits of approving them arrive today, but the risks unfold slowly over the next generation. Demand is created locally and profits are privatized, but the risk is socialized. When shortages deepen, the general public absorbs the consequences. This is the predictable outcome of a system that rewards expansion while ignoring inconvenient science about long-term overuse.

We see this disconnect everywhere. The surge in data centers and advanced manufacturing is a prime example. AI computing requires enormous amounts of power and water for cooling. While public debate focuses on electricity and economic competition, water remains a secondary concern. Large hospitality projects, like the VAI Resort in Glendale or major redevelopments in Scottsdale and Gilbert, follow the same pattern. Each project seems rational on its own, but together they lock in decades of additional demand.

Municipal finance only reinforces this cycle. Many fast-growing cities depend on development revenue to fund their basic services. Slowing down growth threatens short-term budgets, so expansion becomes a necessity to pay for existing commitments. This leads to the system moving the goalposts and redefining "sustainability" even as conditions worsen.

The situation isn't just a failure of planning. It reflects a lack of curiosity about risk. We celebrate economic engines while rarely asking if the water math still works. Solutions exist, but they require us to value resilience as much as we value square footage. We are no longer just managing a water crisis. We are managing a potential water bankruptcy.