The West runs out of water to argue over - and Washington steps in

Climate & Energy 4 min 80 sources

The US federal government imposed Colorado River cuts after seven states failed to agree, as drought spread across England and the American West.

Key takeaways

After seven states failed for years to agree, Washington imposed Colorado River cuts of up to 40% on California, Arizona and Nevada - because a 1922 deal promised more water than the shrinking river holds.
The same drought is spreading elsewhere: half of England is officially in drought after its driest July on record, and heat is closing trout rivers across the American West.
The power system is moving the other way: China now gets under half its electricity from coal for the first time, India's coal share hit a one-year low, and giant batteries are going up from Ohio to Malawi.

For a hundred years, seven US states have shared the Colorado River by argument. On Friday the federal government stopped waiting for them to agree.

Washington imposes what the states could not agree

The US Bureau of Reclamation released its long-delayed plan for the Colorado River, and for the first time in years it did not ask the states to sort it out themselves [65]. Under the ten-year framework, the Lower Basin states - California, Arizona and Nevada - face cuts of up to 3 million acre-feet a year, roughly 40% of their combined share, “subject to hydrology” [65]. That is about enough water to serve more than 25 million people [65]. The four Upper Basin states - Colorado, Utah, New Mexico and Wyoming - are spared mandatory cuts for now [62].

The plan answers a years-long stalemate. The seven states were meant to write their own deal on how to split the pain, and could not [65]. The current rules governing the river expire within months, and a federal record of decision is expected within the week [65].

The trouble is baked into the founding document. A 1922 compact divided up more water than the river actually carries, and as flows fell, that gap only widened [65]. Colorado River flows are down about 20% over the last century, with snowmelt evaporating faster and thirsty soils soaking up more [65]. The two biggest reservoirs, Lake Powell and Lake Mead, sit at record lows, and are unlikely to recover even after a wet winter [65].

Reclamation’s leverage is physical: it runs the dams at Powell and Mead that send water from the upper states down to the lower ones, which is why the cuts land on the Lower Basin [65]. The river supplies about 40 million people across seven states, two countries and dozens of tribes, irrigates 5.5 million acres of farmland, and underpins an estimated $1.4 trillion of economic activity [65].

The town that comes last

What a shrinking river feels like on the ground is visible in Kearny, Arizona, a desert town of about 2,000 people [48]. Its reservoir is effectively empty [48]. The mayor checks two websites each morning: one for his own supply, one to see whether communities with more senior water rights are leaving any spare for him to borrow [48]. Right now, they are - but if they call that water back, Kearny must cut again [48]. In the West’s web of water rights, Kearny comes last [48]. Its mayor warns residents in newsletters stacked with exclamation points that the reprieve is temporary [48].

The same squeeze, three continents

The West is not alone. Half of England is now officially in drought, after what the Environment Agency expects to be the driest July on record [56]. Seven regions are affected, including all of London; July brought only 7% of expected rainfall, and just 1% across southern England [56]. Parts of Devon went 50 days without rain [56]. It is England’s third drought in five years, with rivers like the Thames exposing dry bed [56][63].

In the American West, record heat has pushed river temperatures to levels that kill trout, and wildlife officials are banning fishing during afternoon hours on rivers across several states [70]. In Africa, the African Development Bank warns an incoming “super” El Nino - a Pacific warming pattern that reshapes weather worldwide - could cost affected countries $10 billion to $20 billion and drive mass migration [27].

The grid keeps changing underneath it all

The power system, meanwhile, is shifting fast. China, the world’s largest coal user, generated less than half its electricity from coal for the first time: 49.7% in the six months to June, down from 65.5% in 2015 [29]. In India, coal’s share of power fell to a one-year low in July as renewable generation hit a record, jumping 30% from a year earlier to a fifth of the mix [31].

Storage is filling the gaps. A 1 gigawatt-hour battery - the largest on the PJM grid, which covers 13 eastern US states - is under construction outside Columbus, Ohio, next to fast-growing data centres that are driving demand up [3]. Malawi switched on southern Africa’s first utility-scale battery outside South Africa and Namibia, a 20-megawatt unit to hold its solar power for after dark [14]. And in Texas, developers broke ground on a $1.7 billion, 1.2 gigawatt solar-and-storage project on the land of an old coal mine - though the mine and its coal plant will keep running alongside it [55].

02 · Lesson · why it matters

Why clear rules weren't enough to settle the West's water

A few people can trade their way to a deal over a scarce thing; millions with clear rights still cannot - and someone bigger decides.

Start with the deal that does work

In Kearny, Arizona, the mayor checks two websites every morning. One tells him how much water his own reservoir holds - lately, almost none. The other tells him whether towns with older, stronger water rights are leaving any spare for him to borrow.

Right now they are. He borrows. If they call it back, he cuts. That is a deal quietly closing every day. A senior right-holder isn’t using its full share, a junior town needs water, and the water moves to where it is needed most. Nobody had to be forced.

That small, working trade is the key to the whole story - because on the big river above Kearny, the same deal has failed for years.

The rule that says a scarce thing finds its best use

There is a plain idea in economics. When who-owns-what is clear, and striking a deal is cheap, people will trade a scarce thing to whoever values it most - no matter who the law happens to favour. Picture two neighbours arguing over a shared fence, or one farmer and one factory over a stream. If the right is settled and the parties are few, they bargain their way to the sensible outcome on their own.

The Colorado River should be the easiest case in the world for this. The rights are famously clear. A whole body of law - a century of it - fixes exactly who gets water first. “First in time, first in right.” Kearny comes last, and knows it to the drop.

So why, with rights this sharp, could seven states not write a deal? Why did Washington have to impose one?

The condition everyone forgets

Because the rule has a second half, and it is the half that decides everything: the deal only closes if striking it is cheap.

Cheap doesn’t mean the money. It means the friction - the number of hands that have to agree. One senior holder and one town, Kearny’s case, is a phone call. The whole river is not. Forty million people. Seven states. Two countries. Dozens of tribes. Cities against farms, this generation against the next. Every one of them holding a real claim, every one able to say no.

That crowd is the cost. With that many parties, each with something to lose, the deal never closes. Not because anyone is unreasonable - because agreement among all of them is nearly impossible to reach. The clear rights were necessary. They were nowhere near enough. The harm - reservoirs falling to record lows while everyone negotiates - just goes on.

The rules were never neutral

It is tempting to treat “first in time, first in right” as a law of nature, like gravity over the desert. It isn’t. It is a choice, made by a handful of men in a room in 1922, and it did two lasting things.

It handed the strongest claims to whoever showed up earliest - farms and older towns - and put newer cities, tribes, and the river’s own ecosystem behind them. And it divided up more water than the river actually carries. The Colorado was promised on paper in fuller amounts than it has ever reliably delivered, and as the climate dried the flows, that gap widened into today’s crisis.

None of that looks like a decision now. It looks like the way things simply are. That is what a durable rule does: someone’s old choice hardens into the natural order, and the people it disadvantages inherit it as fact.

What happens when the handshake can’t

You are inside this, wherever you live. If you eat winter lettuce, it likely grew on the 5.5 million acres this river irrigates. The power in a lot of Western homes runs through the same dams now being used as leverage. Forty million people is not an abstraction; it is a good share of a country.

And notice what filled the gap when the private deal failed. Not nothing - something worse than a deal and better than collapse: someone with a bigger stick. The federal government runs the dams that send water downstream, so it could simply decide, and did. When bargaining breaks down, the outcome doesn’t disappear. It gets handed to whoever holds the most physical power, and everyone else lives inside their decision.

This is the quiet shape behind a great many shared problems - a fishery, a shared aquifer, the air itself. A few neighbours can settle almost anything over a fence. But the things that matter most are usually shared by the most people, which is exactly when a fair deal is least able to close itself. Clear rules are the easy half. The hard half is how many hands are on the thing - and on our largest problems, there are always too many.

03 · Lab · your turn

Close the Deal

Rehearse how settled rights and the number of parties decide whether a fair water deal closes on its own - or gets imposed from above.

04 · Hope · carry this

Even after a century of failing to agree, the states keep coming back to the table, because people who depend on the same water cannot afford to walk away from each other. And every morning, somewhere upstream, a town with more than it needs is quietly lending its spare to one that has run short.