UN report warns AI could soon use 3% of world’s electricity and more water than we need to drink

Amanda Turnbull-McRae, University of Waikato

One argument often used to quell concerns about the rising energy and resource demand of data centres is that artificial intelligence (AI) models will need less in the future as they improve and become more efficient.

But this seemingly logical thinking is a trap, according to a new United Nations report that quantifies the environmental costs of AI.

The report estimates that by 2030, AI’s energy use could double to consume 3% of the world’s electricity, produce emissions to equal the UK and deplete more water for cooling than the annual drinking water need of the global population.

It also anticipates the use of AI will follow an economic principle known as the “Jevons paradox”, which predicts that when technological improvements increase the efficiency of a resource, it leads to a rise, rather than a fall, in the total consumption of that resource.

The paradox is named after economist William Stanley Jevons who observed this effect with the use of coal in 19th-century England. Efficiency gains did not reduce overall consumption. Instead, the lower costs resulted in expanded use and higher overall demand.

As AI models become cheaper and more attractive, the report expects this to encourage new uses and higher volumes of use, eroding and possibly erasing any savings from efficiency advances.

To avoid falling into this trap, it lays out a roadmap for responsible AI use based on guiding principles of transparency, efficiency by design, equity and justice, lifecycle responsibility, global cooperation and sustainable use.

The scale of the problem

Last year, data centres already consumed as much electricity as Saudi Arabia, which ranks as the world’s 11th largest electricity consumer.

If electricity use doubles as projected by 2030, the associated carbon footprint would require 6.7 billion trees grown over ten years to offset this demand.

Data centres would also require 9.3 trillion litres of water and land nearly ten times the size of Mexico City.

Beyond resource use, the report also underscores the structural inequity at the heart of the AI boom, with only 32 nations hosting AI-specific cloud infrastructure and 90% of that capacity located in the US and China.

It warns of a widening digital divide between nations that build and control AI systems and those that consume them, with the latter often bearing a disproportionate environmental burden caused by mineral extraction and e-waste.

Responsible AI use

Two main forces shape AI’s operational footprint: how much we use it and how we use it.

This involves all tasks AI models perform, from text and code generation to image and video. Each of these tasks requires different levels of computational effort.

The model choice also matters as each AI system performs these task with distinct energy and environmental costs.

The report argues responsible AI requires full value-chain governance, from mineral sourcing to recycling and safe disposal.

It calls for a twinning of capability and environmental stewardship – thinking about both what AI can do for us and the protection of the natural environment.

This would mean making environmental disclosures a routine part of AI development, at both the model and task level, and incorporating projected AI demand in climate and energy planning.

Responsible AI is crucial as countries are promoting and adopting AI across government and the public sector.

In Aotearoa New Zealand, the government has launched a national AI strategy and a public service AI framework.

While the framework was informed by the OECD’s values-based AI principles, including inclusive and sustainable development, there is no requirement for environmental disclosures and no regulator compiling energy use or emissions.

Likewise in Australia, improving public services is part of the national AI plan. For example, the National Film and Sound Archive of Australia has created Bowerbird, a machine learning-enabled mass audio and video transcription engine, to document material. The Department of Veteran’s Affairs has developed a proof-of-concept tool to see whether AI can help speed up the processing of claims.

Both countries take a deliberate “light touch” and principles-based regulatory approach to AI. But this approach risks overlooking the growing environmental cost of AI that can’t be solved by improving it.

The natural environment is foundational to the economy, culture and wellbeing. It should be at the centre of our thinking. It’s time to rethink the AI innovation playbook and shift focus toward a sustainable tech future.The Conversation

Amanda Turnbull-McRae, Senior Lecturer in Law, University of Waikato

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

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Batteries That Use Sodium Instead of Lithium Could Be Low-Cost Rival to Tesla’s

Sodium-ion batteries providing large-scale energy storage in China – CREDIT: Datang power company / HiNa Battery

A new study shows that a low-cost sodium-ion battery currently used in cars and large-scale energy storage systems in China matches most performance parameters and production quality found in Tesla’s lithium-ion batteries.

Since sodium is much more abundant and widely available than lithium, using it for batteries could cut raw material costs for manufacturers and reduce supply chain risks that surround critical minerals.

Conducted by a German university, the research published on May 28 in the Cell Press journal Physical Science, looked at the battery designed by Hina, a spin-off company of the Chinese Academy of Sciences that has partnered with automakers like JAC to provide EV batteries.

It shows that “once the sodium-ion (or Na-ion) battery is tweaked to charge more effectively at low temperatures and function better at high energy densities, it could provide a cost-effective alternative for future electric vehicle batteries”.

“The combination of good uniformity, high power capability, and strong low‑temperature performance makes these cells attractive for stationary storage, grid services, and shorter‑range or commercial vehicles where potential lower cost and resource availability matter more than maximum driving range,” said Moritz Schütte, a battery researcher at RWTH Aachen University in Germany.

To assess how HiNa batteries compare to more advanced Tesla batteries, Schütte’s team used a non-destructive technique called impedance spectroscopy to measure the uniformity of 120 sodium-ion battery cells. Next, to map out the power and energy performances of individual cells under real-life conditions, the team tested the batteries at varying currents and at temperatures from −20 °C to 45 °C. They also used X-rays to see the battery’s internal structure, then opened up the cells to measure their electrode dimensions, compositions, and microstructures.

They found that the battery uses a tabless (design), a double-aluminum current collector design that reduces resistance and ensures a uniform temperature distribution—and also mirrors the current design of Tesla batteries.

“We were positively surprised by how uniform the cells are,” says Schütte.

However, the sodium-ion battery has some limitations when it comes to energy density and charging at low temperatures. “The high‑power performance was better than one might expect from an early commercial sodium‑ion product,” says Schütte.

“For applications that require frequent charging at low ambient temperatures, appropriate thermal management or operating strategies will be important because low-temperature charging remains a clear weakness.”

The researchers also found unexpectedly high, unevenly distributed levels of copper in certain cathode regions of the battery, which “raises interesting questions about its role in performance and aging,” said Schütte.

“It will be exciting to see future sodium-ion technologies that are free of nickel and copper, as well, while achieving competitive energy density.”

Sodium-ion batteries also perform well under load at low temperatures, making them an appealing option for both stationary power storage and mobile applications in cold climates.

“However, today’s commercial sodium-ion cells generally have lower energy density than the best lithium-ion cells, and the technology is less mature overall,” said Schütte.

Next, the authors plan to better understand and improve upon the battery’s charging capabilities at low temperatures so that they can charge more safely and efficiently below 0°C. Further research should also focus on optimizing the materials used to make sodium-ion batteries, added Schütte.

“Advances in hard‑carbon anodes and electrolyte formulations may be especially promising,” he said.This work was supported by Germany’s Federal Ministry of Research, Technology, and Space and the Federal Ministry for Economic Affairs and Energy. Batteries That Use Sodium Instead of Lithium Could Be Low-Cost Rival to Tesla’s
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