The Erosion of the Colorado River “Safety Nets” is Alarming — Doug Kenney (#ColoradoRiver Research Group) #COriver #aridification

Graphic credit: Colorado River Research Group from the report “Dancing with Deadpool”

Click the link to access the report Dancing with Deadpool on the Getches-Wilkinson Center website (Doug Kenney1):

The rapid loss of storage in Lakes Mead and Powell is certainly deserving of the attention and angst it has generated and continues to generate, but it is the tip of larger trends altering the landscape of risk in the basin. The dismantling of many other “safety nets,” defined broadly, is happening at a pace far surpassing the already unprecedented declines in reservoir storage. Presumably that’s not an immediate problem if new post-2026 rules are able to recover and protect storage in Mead and Powell (and some of the other upstream facilities), but does anyone have that much faith in the power of new reservoir operating rules to combat the forces that have brought us to this point? What about when we have a 10 million acre-feet/year river?

GRACE TWS trend map. (a) The time series of nonseasonal GRACE/FO TWS (km3/year) over UCRB and LCRB for the period (4/2002–10/2024). (b) Spatial variation in TWS trends for the Colorado River Basin for the investigated period (mm/year) (c) Time series comparison of the change in storage ΔS/Δt derived from the water balance equation (Equation 1) and GRACE/FO. ΔS/Δt calculated from GRACE/FO TWS anomalies in km3. The light shading represents uncertainties.

From Groundwater to Governance

Perhaps the most obvious of those other diminishing safety nets is groundwater. Data on groundwater reserves throughout the basin is spotty at best. One approximation of a truly regional assessment comes from a creative use of satellite-based tools—namely NASA’s GRACE (Gravity Recovery and Climate Experiment) system that can detect tiny changes in gravitational forces associated with the fluctuating mass of aquifers losing (or gaining) storage. Those findings paint a truly disturbing picture. Despite the familiar (and troubling) images of bathtub rings emerging at Mead and Powell, researchers using GRACE data now estimate that, from 2002 to 2024, nearly two-thirds of storage—both surface and groundwater—lost in the Colorado River Basin actually came from groundwater depletions.2 Significant groundwater losses have occurred throughout the basin, but the problem is particularly acute in Arizona and is likely to accelerate as shortages in Central Arizona Project (CAP) deliveries are likely offset by groundwater pumping—an ironic outcome given that CAP was originally proposed as the solution to groundwater mining in the region. Simply shifting unsustainable surface water uses to unsustainable groundwater uses does nothing to address the core mismatch of supplies and demands.

A very different and multi-faceted trend undercutting the regional safety nets is happening within the federal government, where federal agencies, programs and science programs are being systematically dismantled under the guise of “efficiency.” It’s hard to understate the significance of these actions, as it is the federal government that, presumably, has the scope, mandate and resources to oversee the entirety of the River and the full diversity of its roles and values. Interior Department agencies in 2025, like much of the overall federal bureaucracy, have been tasked to achieve significant staffing reductions, and to eliminate (or significantly scale back) spending on key water conservation programs—including programs under the Inflation Reduction Act (IRA) and WaterSMART.3

Additionally, agencies across the federal landscape have mobilized to coerce and shut down climate-related science and scientists, despite the nearly universal acknowledgment among water managers of the central role of climate change in the unfolding crisis.4 Collectively these efforts constitute a systematic effort to discredit and hide the primary cause of the broken water budget, while sabotaging the most effective coping mechanisms available. As members of the research community, the Colorado River Research Group (CRRG)unfortunately has a front-row seat to this culling of the people and programs essential to long-term data collection and analysis. It defies logic, and is dangerous.

Unfortunately, hostility toward the people and programs essential to responding to the Colorado River crisis is not the full extent of federal obstruction. One largely unappreciated threat to the water budget resulting from federal policy shifts comes from efforts to “re-carbonize” (and accelerate) water-intensive energy generation, in part to meet the demands of AI, a particularly troubling trend given that the previous emphasis on renewable energy generation and enhanced energy conservation was one of the few positive trends working to repair the regional water budget.5 Attempts to weaken or dismantle bedrock environmental laws, such as NEPA and the Endangered Species Act, are an additional wildcard likely to inflict irreparable harm on already strained species and ecosystems.6

Given the turmoil at the federal level, it’s tempting to absolve the States for stubbornly clinging to a policy making system reliant on 7-state dealmaking, but that would ignore the reality that the governance of the river has been a problem for decades. A seemingly never-ending series of crisis-inspired negotiations, held in largely secretive forums without direct tribal involvement or tools for meaningful public or scientific engagement, is an uninspired way to manage and protect the economic, cultural and environmental heart of the American Southwest. The river is too big and too important to govern in such an ad hoc and primitive manner. [ed. emphasis mine]

That this approach mostly ”worked” to keep deliveries flowing for so long—except, of course, for the tribes and the environment—rested, in part, on the accepted norm that decisions would emerge collaboratively from the States and would not spill over to the federal courts. But even that governance safety net is eroding, as the States seem to be increasingly resigned—and almost “comfortable”—with the notion that the resolution of existing conflicts may not emerge from a negotiated 7-state agreement. For those parties and viewpoints that have historically been left out of the state-dominated processes and the resulting agreements, then maybe this prospect is welcome. But all would concede that would be a stunning outcome with ramifications that are difficult to predict.

Ever since the Arizona v. California experience, the use of litigation to resolve interstate (and/or interbasin) conflicts in the basin has been a third rail issue, and for very good reasons. As shown by the basin’s earlier foray into Supreme Court action, the process would undoubtedly be lengthy, expensive, and likely to create as many issues and questions as it resolves. It certainly wouldn’t reduce risk, as the states, and the water management community more broadly, would lose control over the process of managing the shared resource. In fact, judicial intervention might be the impetus to trigger yet another traditionally feared decision pathway to be invoked—a Congressional rewrite of river allocation and management—either before or after the litigation concludes. In this setting, the extreme disparity in political influence—as measured by the number of Congressional representatives—between the Upper and Lower Basin is an obvious concern, as is the realization that congressional involvement means the future of the Colorado now becomes a national issue and, potentially, a bargaining chip to be used in the political logrolling necessary to enact legislation in dozens of otherwise unrelated areas.

Screenshot from Kestrel Kunz’s presentation at the CRWUA 2023 Annual Conference.

Rowing in the Wrong Direction

Managing water in the arid and semi-arid West is often more about risk than water. From the seniority concept in prior appropriation to the sizing of infrastructure based on low probability events, the goal of water management is often to clearly define and then minimize the risks of running out. Given that, you’d think that the communities dependent upon Colorado River water would be more committed to protecting (and enhancing) the safety nets that are increasingly critical as storage in Lakes Mead and Powell—the basin’s primary risk management tools—increasingly flirt with deadpool. But at the basin scale, that’s typically not what I see. Sure, individual water managers serving major cities or districts have their own risk management plans focusing on everything from new infrastructure to market solutions, but that’s far from a comprehensive or integrated approach, and safety nets designed by and for the “established players” only deepen the inequities that increasingly divide the Colorado River community.

There’s a lot of work left to do in this basin, both prior and after the 2026 deadline. Viewing the problems through the lens of risk management is not a bad place to start. But if doing so, it’s also not a bad idea to remember that poor risk management often comes at expense of diminished equity—an indispensable element of an equitable apportionment. Numerous examples around the world remind us that water scarcity can be the impetus for joint problem-solving in a spirit of camaraderie and mutual support, or it can sharpen and refine alliances that further distance the powerful from the weak. In this regard, I’m inclined to think we are rowing in the wrong direction. ●


Footnotes

1 Director, Western Water Policy Program, Getches-Wilkinson Center, University of Colorado Law School; and Chair, Colorado River Research Group.

2 Abdelmohsen, K., Famiglietti, J. S., Ao, Y. Z., Mohajer, B., & Chandanpurkar, H. A. (2025). Declining freshwater availability in the Colorado River basin threatens sustainability of its critical groundwater supplies. Geophysical Research Letters, 52, e2025GL115593. https://doi.org/10.1029/2025GL115593.

3 Finding accurate data on federal workforce reductions is challenging; see Competing numbers emerge on federal workforce reductions. Between “incentivized retirements,” RIF (reduction in force) layoffs, recently resumed terminations of employees losing court-ordered protections, remaining planned cuts, and the ongoing hiring freeze, the total workforce of the Department of Interior could drop by over a third in 2025. The Interior Department is taking steps to implement layoffs – Government Executive. Similarly, data on efforts to reduce agency budgets is difficult to compile, particularly given the complex back and forth between the administration, Congress, and, increasingly, the courts. The President’s 2026 budget request cuts Reclamation’s budget approximately by a third (Fiscal-Year-2026-Discretionary-Budget-Request.pdf (see page 28 and Table 2); Briefly: Budget proposal defunds Western water conservation grants – Water Education Colorado). Overall, proposed cuts to the Department of Interior total over $5 billion, or 30.5% of the 2025 enacted budget (Table 2). To this point, that request has not been embraced by Congress.

4 For example, within NOAA, the administration’s 2026 budget request “terminates a variety of climate-dominated research, data, and grant programs,” and “cancels contracts for instruments designed for unnecessary climate measurements,” while also cutting National Science Foundation support of research “with dubious public value, like speculative impacts from extreme climate scenarios” (Fiscal-Year-2026-Discretionary-Budget-Request.pdf; see pages 24-25, and 38).

5 Data Center Energy and Water Use Trends Explained – Circle of Blue

6 Regulatory Tracker – Environmental and Energy Law Program

Colorado River “Beginnings”. Photo: Brent Gardner-Smith/Aspen Journalism

Historic Step Forward to Secure Environmental Flows in the #ColoradoRiver — Hannah Holm (AmericanRivers.com) #COriver #aridification

Colorado River, Colorado | Sinjin Eberle

Click the link to read the article on the American Rivers website (Hannah Holm):

December 11, 2025

On the evening of November 19, a packed conference room in the Denver West Marriott erupted in cheers when the Colorado Water Conservation Board approved one of the largest ever dedications of water for the environment in Colorado’s history. This new deal, if completed, will ensure that water currently running through the aging Shoshone Hydropower Plant on the Colorado River, deep in the heart of Glenwood Canyon, will keep flowing through the canyon when the plant eventually goes off-line. It’s not a sure thing yet – water court wrangling over the details and financial hurdles remain. But the Board’s action was a crucial step forward. 

Currently, when the plant is running full steam, 1,400 cubic feet/ second (think 1,400 basketballs full of water passing by every second) is diverted out of the river into a tunnel and then into massive pipes visible against the canyon walls, where the power of falling water spins turbines to generate electricity. The water is then returned back to the river. Under the new deal, when the plant stops operating (it is over 100 years old and vulnerable to rockfall), the water would instead stay in the river, vastly improving conditions for fish and the bugs they eat in the 2.4-mile reach between the diversion and the powerplant’s return flows. The dedication of the plant’s water rights to that stretch of river would bring benefits that ripple hundreds of miles up and downstream because of the crucial role these water rights play in controlling the river’s flow through Western Colorado.  

Shoshone Power Plant, Colorado | Hannah Holm

In Colorado, as in most of the West, older water rights take priority over newer ones when there’s not enough water to satisfy everyone’s claims.  On the Colorado River, the Shoshone Hydropower rights limit the amount of water that can be taken out of the river upstream by junior rights that divert water from the river’s headwaters through tunnels under the Continental Divide to cities and farms on the eastern side of the Rocky Mountains. The new deal to enable the Shoshone rights to be used for environmental flows would preserve those limitations on transmountain diversions in perpetuity.

Upstream from the power plant, near the ranching town of Kremmling, Colorado, the river carries less than half the water it would without the existing transmountain diversions. This stresses fish populations and the iconic cottonwood groves that line the river. The Shoshone rights downstream prevent these diversions from being even larger. Because the power plant returns all the water it uses to the river without consuming it, the water continues to provide benefits downstream from the plant to rafters, farms, cities and four species of endangered fish that exist only in the Colorado River Basin. Securing these flows for the future is particularly important as climate change continues to reduce the river’s flow, which has already declined by roughly 20% over the past two decades.  

The people cheering in the hearing room represented cities, towns, counties and irrigation districts from up and down the Colorado River. Their entities had pledged ratepayer and taxpayer dollars to help secure the rights in the complex transaction spearheaded by the Colorado River Water Conservation District. Environmental organizations, including American Rivers, Audubon, Trout Unlimited and Western Resource Advocates, were also parties to the hearing and supportive of the deal, but were vastly outnumbered.  

The Coloradans cheering in that room were there because their constituents’ livelihoods, clean drinking water and quality of life depend on a living Colorado River. American Rivers is proud to stand with them and will continue advocating for the completion of this historic water transaction.

Colorado River Basin, USBR May 2015

Even with President Trump’s support, #coal power remains expensive – and dangerous — Hannah Wiseman and Seth Blumsack (TheConversation.com)

President Donald Trump has aligned himself with the coal industry, including at this meeting in April 2025. Andrew Thomas/Middle East Images/AFP via Getty Images

Hannah Wiseman, Penn State and Seth Blumsack, Penn State

As projections of U.S. electricity demand rise sharply, President Donald Trump is looking to coal – historically a dominant force in the U.S. energy economy – as a key part of the solution.

In an April 2025 executive order, for instance, Trump used emergency powers to direct the Department of Energy to order the owners of coal-fired power plants that were slated to be shut down to keep the plants running.

He also directed federal agencies to “identify coal resources on Federal lands” and ease the process for leasing and mining coal on those lands. In addition, he issued orders to exclude coal-related projects from environmental reviews, promote coal exports and potentially subsidize the production of coal as a national security resource.

But there remain limits to the president’s power to slow the declining use of coal in the U.S. And while efforts continue to overcome these limits and prop up coal, mining coal remains an ongoing danger to workers: In 2025, there have been five coal-mining deaths in West Virginia and at least two others elsewhere in the U.S.

A large industrial area with towers, a rail line and large buildings with large metal connections.
A coal-fired power plant in Michigan has remained open at Trump administration orders. Jim West/UCG/Universal Images Group via Getty Images

A long legacy

Until 2015, coal-fired power plants generated more electricity than any other type of fuel in the U.S. But with the rapid expansion of a new type of hydraulic fracturing, natural gas became a cheap and stable source for power generation. The prices of solar and wind power also dropped steadily. These alternatives ultimately overcame coal in the U.S. power supply.

Before this change, coal mining defined the economy and culture of many U.S. towns – and some states and regions, such as Wyoming and Appalachia – for decades. And in many small towns, coal-related businesses, including power plants, were key employers.

Coal has both benefits and drawbacks. It provides a reliable fuel source for electricity that can be piled up on-site at power plants without needing a tank or underground facility for storage.

But it’s dirty: Thousands of coal miners developed a disease called black lung. The federal government pays for medical care for some sick miners and makes monthly payments to family members of miners who die prematurely. Burning coal also emits multiple air pollutants, prematurely killing half a million people in the United States from 1999 through 2020.

Coal is dangerous for workers, too. Some coal-mining companies have had abysmal safety records, leading to miner deaths, such as the recent drowning of a miner in a sudden flood in a West Virginia mine. Safety reforms have been implemented since the Big Branch Mine explosion in 2010, and coal miner deaths in the U.S. have since declined. But coal mining remains a hazardous job.

A stone plaque with names carved on it, between two statues of coal miners.
A memorial honors coal miners who died on the job in Harlan County, Ky. Jim West/UCG/Universal Images Group via Getty Images

A champion of coal

In both of his terms, Trump has championed the revival of coal. In 2017, for example, Trump’s Department of Energy asked the Federal Energy Regulatory Commission to pay coal and nuclear plants higher rates than the competitive market would pay, saying they were key to keeping the U.S. electricity grid running. The commission declined.

In his second term, Trump is more broadly using powers granted to the president in emergencies, and he is seeking to subsidize coal across the board – in mining, power plants and exports.

At least some of the urgency is coming from the rapid construction of data centers for artificial intelligence, which the Trump administration champions. Many individual data centers use as much power as a small or medium city. There’s enough generation capacity to power them, though only by activating power plants that are idle most of the time and that operate only during peak demand periods. Using those plants would require data centers to reduce their electricity use during those peaks – which it’s not clear they would agree to do.

So many data centers, desperate for 24/7 electricity, are relying on old coal-fired power plants – buying electricity from plants that otherwise would be shutting down.

A long train of cargo cars carrying a black substance stretches to the horizon.
The sun rises on a coal train outside Ritzville, Wash. Visions of America/Joseph Sohm/Universal Images Group via Getty Images

Limits remain

Despite the Trump adminstration’s efforts to rapidly expand data centers and coal to power them, coal is more expensive than most other fuels for power generation, with costs still rising.

Half of U.S. coal mines have closed within the past two decades, and productivity at the remaining mines is declining due to a variety of factors, such as rising mining costs, environmental regulation and competition from cheaper sources. Coal exports have also seen declines in the midst of the tariff wars.

The U.S. Department of the Interior’s recent effort to follow Trump’s orders and lease more coal on federal lands received only one bid – at a historically low price of less than a penny per ton. But in fact, even if the government gave its coal away for free, it would still make more economic sense for utilities to build power plants that use other fuels. This is due to the high cost of running old coal plants as compared to new natural gas and renewable infrastructure.

Natural gas is cheaper – and, in some places, so are renewable energy and battery storage. Government efforts to prevent the retirement of coal-fired power plants and boost the demand for coal may slow coal’s decline in the short term. In the long term, however, coal faces a very uncertain future as a part of the U.S. electricity mix.

Hannah Wiseman, Professor of Law, Penn State and Seth Blumsack, Professor of Energy and Environmental Economics and International Affairs, Penn State

This article is republished from The Conversation under a Creative Commons license. Read the original article.