Three years ago, Google set an ambitious plan to address climate change by going “net zero,” meaning it would release no more climate-changing gases into the air than it removes, by 2030.
But a report from the company Tuesday shows it is nowhere near meeting that goal.
Rather than declining, its emissions grew 13% in 2023 over the year before. Compared to its baseline year of 2019, emissions have soared 48%.
Google cited artificial intelligence and the demand it puts on data centers, which require massive amounts of electricity, for last year’s growth.
Making that electricity by burning coal or natural gas emits greenhouse gas emissions, including carbon dioxide and methane, which warm the planet, bringing more extreme weather.
The company has one of the most significant climate commitments in industry and has been seen as a leader.
Lisa Sachs, director of the Columbia Center on Sustainable Investment, said Google should be doing more to partner with cleaner companies and invest in the electrical grid.
“The reality is that we are far behind what we could already be doing now with the technology that we have, with the resources that we have, in terms of advancing the transition,” she said.
Google Chief Sustainability Officer Kate Brandt told media, “Reaching this net zero goal by 2030, this is an extremely ambitious goal.
“We know this is not going to be easy and that our approach will need to continue to evolve,” Brandt added, “and it will require us to navigate a lot of uncertainty, including this uncertainty around the future of AI’s environmental impacts.”
Some experts say the rapidly expanding data centers needed to power AI threaten the entire transition to clean electricity, an important part of addressing climate change. That’s because a new data center can delay the closure of a power plant that burns fossil fuel or prompt a new one to be built. Data centers are not only energy-intensive, they require high voltage transmission lines and need significant amounts of water to stay cool. They are also noisy.
They often are built where electricity is cheapest, not where renewables, such as wind and solar, are a key source of energy.
Global data center and AI electricity demand could double by 2026, according to the International Energy Agency.
Other major tech company sustainability plans are also challenged by the proliferation of data centers. They caused Microsoft’s emissions to grow 29% above its 2020 baseline, the company said in an environmental sustainability report in May.
Tech companies make the case that AI, including tools such as ChatGPT, is not only partially causing climate change, it’s also helping to address it.
In the case of Google, that could mean using data to predict future flooding, or making traffic flow more efficiently, to save gasoline.
Amanda Smith, senior scientist at the climate nonprofit Project Drawdown, said those who use AI — both large companies and individuals just making memes — need to do so responsibly, meaning using the energy only when it benefits society.
“It’s up to us as humans to watch what we’re doing with it and to question why we’re doing that,” Smith added. “When it’s worth it, we can make sure that those demands are going to be met by clean sources of power.”
Google’s emissions grew last year in part because the company used more energy; 25,910 gigawatt-hours more, an increase from the year before and more than double the hours of energy consumed just four years earlier. A gigawatt-hour is roughly the energy that a power plant serving several hundred thousand households puts out in one hour.
On the positive side, as Google’s consumption grows, so has its use of renewable power.
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