16-year-old Hesandi Ravisinghe examines the disproportionate impact of artificial intelligence on climate change

‘ChatGPT alone accounts for roughly 61 million litres of water usage per day.’
Picture by: Sanket Mishra | Pexels
Article link copied.
Artificial intelligence, better known as AI, has been in the spotlight recently, mainly because of its potentially damaging effect on people’s lives and jobs, especially in the creative industries. However, many fail to notice the damage caused by its environmental impacts.
Harbingers’ Weekly Brief
When a computer or machine is given the ability to perform tasks usually done by humans – mainly tasks relating to creativity and problem-solving – it is known as artificial intelligence. At first glance, this seems like a harmless yet useful tool – leading to its rapid growth in popularity. As of August 2025, OpenAI’s chatbot ChatGPT has around 800 million weekly active users, quadruple the 200 million users in August 2024.
AI can be used to improve productivity, make fewer mistakes, and overall is a cost-effective method to enhance your work.
However, there seems to be a problem… or two.
AI systems require massive amounts of energy and water to function, leading to significant depletion of resources.
Water consumption
Data centres produce high levels of heat due to the immense computational power required to process millions of requests per minute. To prevent overheating, they rely on cooling systems that often use large volumes of water. While some of this water can be reused, a large portion is lost during evaporation.
Water is also lost during electricity generation to power AI systems, though the amount of water depends on the energy sources.
On average, training a single AI model, such as GPT-3, requires around 700,000 litres of water. Even a single conversation with ChatGPT uses up to 500 ml of water. With just over 122 million daily users, ChatGPT alone accounts for roughly 61 million litres of water usage per day.
In addition, producingAI hardware such as semiconductors requires large amounts of ‘ultrapure water’ or UPW, adding to its already significant water footprint.
The Mexican state of Querétaro is home to two dams, both of which have dried up significantly over the years. While its citizens suffer from extreme droughts all year round, the state hosts 20 data centresand wants to attract more.
While those with the privilege of clean water may see AI’s endless possibilities as worth the cost, 2.2 billion people worldwide still lack accessto safe drinking water.
Greenhouse gases
Burning fossil fuels to create energy releases large amounts of greenhouse gases, which everyone knows is detrimental to the planet. And AI is very greedy when it comes to energy use: for context, a single ChatGPT query consumes roughly ten times the electricity of a standard Google search.
Sam Altman, CEO of OpenAI, recently revealed that adding extra words like “please” and “thank you” to AI conversations costs millions of dollars in extra energy costs.
According to the MIT Technology Review, training one large AI model can produce more than 626,000 pounds of carbon dioxide equivalent – that’s nearly five times the lifetime emissions of an average American car.
Electronic waste
AI data centres also produce electronic waste (e-waste), which contains toxic substances such as mercury and lead. Around 62 million tonnes of e-waste were produced worldwide in 2022, according to the UN’s Global E-Waste Monitor 2024, and the amount of e-waste is growing five times faster than e-waste recycling programmes. When it comes to generative AI, a recent study concluded that the potential increase in e-waste could be as high as five million tonnes per year.
Using AI to combat climate change
There are ongoing efforts to make AI more environmentally sustainable, for example by tracking energy consumption and switching to renewable energy sources.
Some companies are experimenting with new cooling methods. Tech giant Microsoft, for example, is testing a fluid that boils at 10°C, making it significantly more energy-efficient than air conditioners and other cooling techniques currently used in data centres worldwide.
AI can also be used to find solutions to the climate crisis, such as designing lighter materials to reduce fuel consumption in aviation. AI satellite imagery can help detect floods, deforestation and methane leaks and even illegal fishing.
However, AI also brings a plethora of ethical concerns – such as the spread of misinformation on search engines and using copyrighted creative work to train AI models – which need to be addressed separately.
Despite the possibility that AI may be environmentally friendly in the future, this may not be achieved fast enough. While achieving such a goal seems daunting, every step toward sustainable AI development counts. Scientists warn that 2030 – just five years away – is probably the point of no return, when global warming exceeds 1.5°C and its effects become irreversible.
Written by:

Science Section Editor 2025
Galle, Sri Lanka
Born in 2009, Hesandi lives in Galle, Sri Lanka, and has a deep interest in art, nature, and wildlife, particularly elephants, leopards, and birds.
She joined Harbingers’ Magazine as a contributor to its Sri LankanNewsroom. After completing the Essential Journalism Course, she became a writer, continuing to cover wildlife and science topics. Her passion for journalism and dedication to her work led to her promotion as Science Section Editor in March 2025. She will also be editing articles from the NepaliNewsroom.
In her free time, Hesandi enjoys painting and has a passion for travel.
She speaks English and Sinhala and is currently learning Indonesian.
Edited by:

🌍 Join the World's Youngest Newsroom—Create a Free Account
Sign up to save your favourite articles, get personalised recommendations, and stay informed about stories that Gen Z worldwide actually care about. Plus, subscribe to our newsletter for the latest stories delivered straight to your inbox. 📲
© 2025 The Oxford School for the Future of Journalism