But they have also voiced worries about AI‘s potential to devour energy, and harm humans and the planet.
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Exactly one year after the blockbuster debut of ChatGPT, the chatbot that introduced AI to hundreds of millions of people, the climate summit opened last week with a burst of events and announcements centered on AI technology. Many were stocked with representatives from Microsoft, Google and other power players in the emerging AI industry.
The hope for AI breakthroughs in the fight against rising global temperatures flows from the technology’s ability to process vast quantities of information. That allows it to produce insights and efficiencies that far exceed what computers and data scientists have been able to do, with a wide range of applications for climate.
The United Nations said on the summit’s opening day that it was partnering with Microsoft on an AI-powered tool to track whether countries are following through on their pledges to reduce fossil fuel emissions, helping to solve what has been one of the thorniest issues in international climate diplomacy.
Other groups offered research highlighting AI’s potential to reduce emissions in manufacturing and food production, help locate new renewable energy projects and balance electricity loads during extreme weather events.
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Officials from Google and Boston Consulting Group predicted that AI could help mitigate as much as one-tenth of all greenhouse gas emissions by 2030. A team of researchers led by David Sandalow, a former U.S. Energy Department official in President Barack Obama’s administration who is now at Columbia University, issued what it called a road map Sunday for AI’s role in speeding emissions reduction across a wide range of sectors. In an interview at the conference, Sandalow said he was particularly excited for the possible ways AI could speed up the discovery and design of new materials for low-emission energy technologies like advanced batteries.
“When Thomas Edison invented the lightbulb, he physically took different metals to test how they would react to electric charges — it took him months to identify the best options,” Sandalow said. “Today, with AI tools, we can test a million different options in a second and impose chemical structural constraints to figure out what’s realistic and rapidly accelerate the pace of innovation.”
In a panel discussion Sunday morning, business executives said AI was already helping their companies deliver alerts to people at risk of experiencing flooding, send text messages with hyperlocal planting advice to farmers coping with drought and help people exposed to high levels of air pollution decide the safest times to venture outdoors.
They also said concerns over the technology were holding them back from doing more.
“Climate change is a man-made existential threat,” Natalie Blyth, global head of commercial banking sustainability at HSBC, said at the event. “What we don’t want is to move from one man-made to another,” she said, referring to crises. “So we have to be responsible and ethical, and really cautious, in how we release and understand some of these technologies.”
Leaders at the companies developing AI technology have already cautioned that it could someday pose a risk of extinction to humanity, on par with nuclear war. Researchers at COP28 have focused on a different risk — that the computing power required to run advanced AI could be enormous. That electricity appetite could send emissions soaring and make climate change worse.
A peer-reviewed analysis published in October estimated that AI systems worldwide could use as much energy in 2027 as all of Sweden. That would almost certainly add to emissions, even though countries are lagging on their pledges to cut them. (A Boston Consulting Group study for Google also noted that powering AI would quite likely require vast quantities of water and produce an increasing amount of waste.)
Researchers and company representatives said they hoped the relative benefits of AI on the climate would outweigh the significant energy use required to power it. But they were not certain.
Brad Smith, president of Microsoft, said in an interview that AI was creating huge additional demand for energy. To address that, he said Microsoft was working to improve the sustainability of its data centers and help develop more renewable energy.
“We need to maximize the benefits this can create across the economy, including for sustainability, and make sure that it’s all fueled by carbon-free energy with more energy-efficient data centers,” Smith said. “Can I do a mathematical equation? Not yet.”
Environmental groups at the summit have seemed to largely embrace the technology. One coalition of them, called We Don’t Have Time, put out a series of videos last week of young activists calling for more urgent climate action, with a twist.
The activists appeared as simulated middle-aged versions of themselves, as if they were speaking from the future. The aging, the group said, was handled by AI.
