They suck up energy and water, and blast out heat. Just who is better off from all this investment – aside from tech bros?

The two great existential threats of our time – the climate crisis and AI – come hurtling together in the explosion of datacentres across Australia and around the world.

You can hardly avoid hearing about them these days, either with awed reverence of the promised benefits to humankind or with fear and anger given the implications for the climate, inflation, jobs and even housing affordability.

The scientific consensus is that burning fossil fuels drives the climate crisis, yet the world’s biggest oil companies are planning to increase production

As the world swelters in ever more dangerous heat, why are oil companies being allowed to turn up the gas instead of paying for the consequences of their greed?

That ought to be the question on everyone’s minds amid baking heat domes over much of the northern hemisphere, temperature records being smashed day after day, children dying in locked cars, hospitals filling with heatstroke victims and emergency services tackling wildfires.

Exclusive: Campaigners argue news channel’s attacks on climate action ‘work in financial interests’ of Sir Paul Marshall

The hedge fund run by the co-owner of GB News almost tripled its investments in fossil fuel companies in the first quarter of 2026 to $2.8bn (£2.1bn), the Guardian can reveal.

Critics have accused Sir Paul Marshall of “cashing in on climate chaos” and have claimed the news channel, which frequently attacks climate science and action, was “working in its owner’s financial interests”.

Readers respond to an article about Erin Brockovich’s battle against datacentres and voice their fears for the environment

What are the benefits obtained from AI’s massive use of electricity and water (‘We’re up against forces that have all the money in the world’: Erin Brockovich on her battle against AI datacentres, 29 June)? Analysis shows that the top four uses of AI are “therapy/companionship”, “technical assistance and troubleshooting”, “fun and nonsense”, and “fan fiction and storytelling”.

AI use for therapy, and due to loneliness, appears not to reduce loneliness. AI provides affirmation, but at the expense of reducing the social skills needed to interact in the real world. Teachers report that students’ use of AI reduces their capacity for critical thinking.