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Zack Polanski's freeze demand is unlikely to pass, but the argument beneath it, over a 2024 designation and two water estimates that differ by orders of scale, is where the consenting risk on Britain's AI buildout actually sits.
The Investor · Invest desk
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The two water numbers in this fight measure different things, which is why both sides can cite them honestly. The Water Research Centre's February estimate, roughly 1.9 billion litres of drinkable water a year for England's data centres, or 0.2% of the non-household market [7], works out at about 5.2 million litres a day across the entire sector [1]. The Global Action Plan figure the Greens prefer puts a single large facility at up to 1.5 million litres a day [8], which annualises to 547.5 million litres, so England's whole metered sector amounts to roughly three and a half of the Greens' buildings [2]. A sector total at the meter measures something different from a per-site ceiling, and both figures can hold. That 0.2% share, incidentally, implies a non-household market of around 950 billion litres a year [3], which is the denominator doing most of the reassuring.
The carbon side is more tractable, and more revealing about method. Foxglove's projection for Wapseys Wood in Buckinghamshire and Quest Park in Bedfordshire, more than 4.5 million tonnes a year at full operating capacity on 1.3GW of draw [9], sits about 15% above the 3.9 million tonnes Ember attributes to ExxonMobil's entire UK operation in 2023 [12][4]. Run 1.3GW flat out and you get 11.4 TWh a year, so 4.5 million tonnes implies something near 395 grams of CO2 per kilowatt hour [5], an assumption about the electricity these halls will buy, a variable that shifts with grid mix rather than a fixed property of the halls. It is the exact term the senior Labour official was reaching for in conceding the designation is "not a blank cheque for Big Tech" and that developers must use clean power, manage water responsibly and invest in host communities [16].
For anyone underwriting a British site, the 2024 designation [5] is worth less as a subsidy line than as a ranking. The Greens' objection is that these facilities would come ahead of homes for water and electricity in a shortage [6], which is another way of saying the status is an availability assumption, and availability is what a colocation contract actually sells. Demote it in a summer the Green Party says has three quarters of the country scrambling for consistent supply [11], and the uptime story gets rewritten before any covenant does.
The counter-thesis is strong. Polanski stopped short of a full moratorium [15], his party does not hold the pen, and Whitehall has dug in on jobs and data sovereignty [14]. Neil Ross of Public First reads UK opposition as local and environmental where American anger is about household bills [17], and local objections travel through planning committees rather than statute, which is the slower route, or rather the more expensive one, because it lands on named schemes and specific months. This is probably wrong, but I would price a water reporting duty here, since Toby Perkins chairs a Commons inquiry that has already framed the issue as missing safeguards [13], and disclosure is the cheapest safeguard to legislate; a freeze looks like the less likely outcome. If the consents at Wapseys Wood and Quest Park land on schedule and the designation survives that inquiry intact, I was pricing noise.
Ranked by verification strength, evidence, and original report placement.
Green Party leader Zack Polanski asked the UK government to freeze approvals for new data centres in England.
Polanski also asked the government to strip data centres of their critical-infrastructure status, citing drought, rising water use and carbon emissions.
Polanski told the BBC at the proposed site for an East London data centre that the government should "slam the brakes" on approving large data centres.
Polanski proposed allowing only small facilities that actually serve their immediate communities.
The UK government's 2024 decision upgraded data centres to critical national infrastructure status, a designation that comes with extra state support, among other perks.
The Greens say they are fighting to avoid a future in which energy- and water-guzzling data centres take priority over homes for water and electricity in the event of a shortage.
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Evidence-backed comparisons of source perspectives and observed adoption signals. Read the methodology
Which Builder, Operator, and Investor concerns the observed source mix emphasized—not a truth score.
Evidence, demonstrated adoption, hype gap, incentives, and confidence are assessed independently, each on its own current evidence. How these are measured.
Four newsrooms, all quoted at one remove
Nothing in this story was gathered first hand. Cryptopolitan is the only publisher carrying it, and it sources Polanski to the BBC and LBC, the emissions analysis to the Guardian's report on Foxglove, and the government's rebuttal to POLITICO. The saving grace is that the numbers come with names attached — Water Research Centre, Global Action Plan, Foxglove, Ember — rather than "studies show". The weakness is that no two of those numbers measure the same thing, and because UK operators have no water-reporting duty there is no register anywhere that could settle it.
No takers in Britain, real pauses only abroad
The freeze has been adopted by nobody with the power to grant it: the government's answer, relayed through POLITICO, is that a pause would be a disaster for jobs and national security. What is actually in force is the opposite — the 2024 critical national infrastructure upgrade, plus two live proposals at Wapseys Wood and Quest Park totalling 1.3GW. The score is not zero only because the American version of this fight has already produced moratoriums in states including New York and Texas, and because a Commons inquiry into the sector is sitting.
The litre figure that never gets aggregated
Set the two water numbers side by side and the campaign framing thins. Global Action Plan's 1.5 million litres a day is what the Greens repeat; the Water Research Centre's 1.9 billion litres a year for every data centre in England works out at about 5.2 million litres a day — the equivalent of some three and a half such sites for the entire country, and 0.2% of non-household demand. One figure is per facility and alarming, the other is national and small, and the piece prints both without noticing. The emissions half of the case travels better: 4.5 million tonnes from two proposals really does exceed Ember's 3.9 million tonnes for ExxonMobil's whole UK operation. But it assumes 1.3GW running flat out all year, which implies roughly 395 grams of CO2 per kilowatt hour, and nobody in this reporting says whose grid that is.
Every figure arrives with a campaign attached
A party leader is hunting voters, and one of the analysts quoted says so outright — Verdant's James Meadway calls this an issue matching the public mood that could win the Greens support. Opposite him is an unnamed senior Labour official defending a flagship growth strategy. The numbers come from a nonprofit contesting the sites, a campaigning charity, and an industry that answers by pointing at leisure centres and leaking pipes. The carrier is a crypto news site that closes with a newsletter pitch and a trading disclaimer. Nobody in this story is a disinterested measurer, and the only parties with actual meters are under no obligation to publish what they read.
Solid on who said what, thin on how much
The political layer is easy to accept: quotes, named politicians, an identified committee chair, a designation with a date. Confidence falls away on the physical claims, because one relayed account is carrying a per-site water figure, a national water figure and a two-site emissions figure produced by three different organisations for three different purposes, none of them reconciled in the text and none checkable against reported consumption.