There’s a quiet but important debate bubbling away in The Guardian last weekend.
Not about banning AI.
Not about stopping data centres.
Not about killing growth.
About disclosure.
Campaigners are calling for the UK government to require data centre developers to demonstrate that new projects will not increase net greenhouse gas emissions — and to be clearer about how their energy use is accounted for.
That might sound procedural.
It isn’t.
It’s fundamental.
The Myth of the Weightless Cloud
We still talk about “the cloud” as if it floats somewhere above consequence.
It doesn’t.
A hyperscale data centre is concrete, steel, transformers, substations and transmission lines. It draws power at levels that compete with towns. AI workloads only intensify that demand.
If these facilities are going to be designated as “strategic national infrastructure”, then the word strategic has to mean something.
Strategic infrastructure should come with system-level transparency.
What does it consume?
What generation capacity supports it?
Does it add new renewables — or reallocate existing ones?
What is the net impact on national emissions?
Those are not activist questions.
They are planning questions.
The Real Issue: Additionality
The debate hinted at in the article centres on a technical but crucial concept: additionality.
It’s one thing to purchase renewable energy certificates and claim green credentials.
It’s another to fund or contract genuinely new renewable generation that would not otherwise exist.
Those are very different outcomes for the grid.
If a data centre claims to be “100% renewable” but simply diverts existing green supply from elsewhere in the system, national emissions don’t magically fall. The accounting may look neat; the physics doesn’t change.
That’s why disclosure matters.
Not to shame.
To clarify.
This Isn’t Anti-Tech
I’ve spent my career around enterprise estates — mainframe, hybrid, cloud. I know how efficient well-run infrastructure can be. I also know how quickly digital expansion can outrun governance.
Technology is not the enemy.
Opacity is.
If developers can demonstrate:
• Clear carbon baselines
• Transparent modelling assumptions
• Evidence of additional renewable capacity
• Grid impact mitigation
…then they strengthen their social licence to operate.
If they can’t, suspicion grows.
And suspicion is bad for investment.
Markets Like Clarity
We are entering an era where AI infrastructure is positioned as an economic engine. Capital is flowing. Governments are competing for growth zones.
Fine.
But serious capital markets don’t fear disclosure.
They price it.
Transparent emissions modelling, grid impact reporting and renewable commitments are not barriers to growth — they are signals of maturity.
If the UK wants to lead in AI infrastructure, it should also lead in transparent energy accounting.
Otherwise we risk building scale first and explaining it later.
That rarely ends well.
A Simple Principle
If you’re going to consume power at the scale of a small city, publish the numbers.
Show the maths.
Demonstrate the additional renewables.
Explain the system impact.
Not because tech is bad.
Because progress that hides its footprint isn’t progress — it’s deferred accountability.
And deferred accountability tends to arrive, eventually, with interest.
The Third Half
People · Planet · Progress