Google’s exponential path to climate-wrecking digital bloat

I wasn’t entirely sure what to expect from Google’s latest climate report, but holy hell, I did not expect this.

The company’s total electricity consumption jumped from 31 terawatt hours (TWh) in 2024 to 43 TWh in 2025. This is very easily the biggest increase in their electricity consumption ever, and it puts them way ahead of Microsoft. It is almost certainly a reflection of the obscene energy hunger of their ever-expanding bloated generative AI systems, and a vindication of the warnings we’ve been raising for several years now.

I’ve updated all the report figures in my data tracking page, here. For the first time, I’ve compiled Google’s electricity consumption back to 2011, to give a historical view of what is happening here, because my description does not do this justice:

Amazon stopped disclosing their data a few years ago

To give you some sense of scale here, this is what Google’s current consumption looks like, relative to the energy consumption of a bunch of country’s power grids:

Google’s power consumption rose by 7 TWh between 2023 and 2024. That was bad. But it rose by a whopping 12 TWh between 2024 and 2025, almost double last year’s increase. Google’s power consumption isn’t just growing – the rate at which it is growing is growing. We have a word for this: exponential growth.

Every time I look at this chart I have to go and double check every single Google number, because it just looks so ridiculous

The power grids that Google’s data centres are plugged into have to increase generation to match this new demand – and that includes rising use of coal and gas, and as a consequence, worse climate disasters like deadly heatwaves. Google’s consumption is rising way faster than the grids are being cleaned up with renewables, and that means their emissions number is going up fast, too. It’s the steepest rise on record:

Read Google’s report, and they sort of mumble through this problem:

“While we remain deeply committed to sustainability, reaching our climate moonshot is getting harder. Growing our data center footprint to build out the infrastructure needed to make AI as helpful as possible to everyone requires energy and resources”

“While the path to achieving our climate ambitions will not be linear—given our AI infrastructure buildout is currently accelerating faster than the grid is decarbonizing—we remain focused on scaling abundant and affordable clean power globally and progressing technological innovations that drive down emissions across our operations and the broader industry”

They’re not wrong here. The path to ‘achieving their climate ambitions’ is not linear. It is looking more like an exponential, going in the exact wrong direction:

This all of Google’s emissions, compared to their target. “Raw” is just the unadjusted numbers, and “claimed” shows exclusions from their supply chain and renewable energy procurement claims, which I go into a bit below.

If “AI infrastructure buildout is currently accelerating faster than the grid is decarbonising” then Google shouldn’t be building AI infrastructure. If they are breaching the boundaries of safe operation on a planet that can only take so much, they should stop and consider whether all of this is worth it.

Think about what Google’s AI services have done for you. Does it seem worth it? Are you getting a deadly heatwave’s worth of use, out of PDF summaries and AI overviews?

While Google have clearly toned down the “net benefit to AI” language we criticised in a report earlier this year, they’ve invented some absurd new AI ‘benefit ‘avoided emissions’ claims that don’t hold up to scrutiny. They’ve ramped up their ‘efficiency-washing’ a few notches: a tactic that badly downplays the real, absolute impact of their decisions. They’ve written up substantial clean energy deals, but those deals lack critical information for us to know how meaningful they really are.

Despite this greenwashing bonanza, Google doesn’t even bother to pretend to be on track for its climate goals. Mix the foolish decision-making of FOMO-ridden executives with the most stunningly inefficient software tool big tech has ever created and you end up with a formerly efficient company turned into a blunt Bitcoin-style climate bomb, weirdly still convinced they’re saving the planet.

AI solutionism – toned down but still a problem

In ‘The AI Climate Hoax‘, we (a group of accountability, anti-disinformation and climate groups) told the story of how Google could not stop claiming that “AI” could reduce global emissions by 5 to 10% by 2030 (including in their 2024 sustainability report). That statement didn’t come from a study or an analysis, but from a consulting group’s sloppy guesstimate extrapolated from a random conversation. This was a claim that was a headline statement Google used in policy recommendations for the European Union!

Google’s head of sustainability, Kate Brandt, has claimed multiple times that AI could reduce global emissions between 5 to 10%

We also found Google was among many companies smooshing together old, low-energy forms of AI (like wind forecasting) with the generative slop tsunami: falsely coupling them to pretend you can’t have one without the other. Essentially, justifying their private jet sales because they also sold a bicycle.

In this new report, Google have stopped claiming “AI” is destined to have a ‘net benefit’ to society, and notably, they stopped making the 5-10% claim after our report launched.

Before (red, 2024) and after (green, 2025). Note the change in wording.

This is good. But there is still a strong focus on tactically vague AI solutionism throughout the new report, trying to more subtly present non-generative AI as if it somehow neutralises or offsets the massive, unstoppable harm of generative AI:

Everything presented here is ‘traditional’ AI, ie, the old, low energy machine learning systems. Nowhere do Google explain these technologies are wildly different to generative AI.

Google’s total claim for emissions reductions “enabled” by their products is a whopping 41 million megatonnes of CO2-e, more than the company’s entire footprint by a good margin. Most of this comes from the extremely absurd claim that Google Earth (!) enables the siting of clean energy projects – and so Google claims credit for the entire emissions reductions of all those projects for the full year of 2025:

I mean. Come on. There are so many satellite imagery programs out there. They could do the same thing for Google Docs or Gmail and get similarly huge numbers. This is such weak logic, and it’s the bulk of this headline number.

These are very, very significant claims from one of the world’s biggest companies, but the entire space of ‘avoided emissions’ statements like these is totally unregulated. Every single claims comes with the footnote “The data and claims have not been independently verified”. And Google doesn’t share enough information for anyone to do even try do an independent verification for things like ‘fuel efficient routing in Google maps’ or thermostat energy efficiency savings.

Efficiency-washing

As I wrote here last year, Google’s key tactic has been hyper-focusing on the energy consumption of a single, simple query to a chatbot, and highlighting how that has decreased over time, to mask how their absolute energy consumption has completely flipped out beyond belief.

In this report they really ramp up that nonsense. First they calculate what their emissions may have been had they performed no energy efficiency actions at all, and then present those emissions against their claimed total:

Above, Google claims nearly 41 MTCO2-e of avoided emissions thanks to machine hardware and software / computing efficiencies. Again, this is more than their entire emissions footprint. And again, this hasn’t been independently verified and we cannot even begin to try, because Google don’t release all the information we would need to figure if this number is being juiced by dodgy assumptions.

It is actually pretty likely that it was Google’s efficiency actions that enabled their total energy consumption to increase. It’s well known that, in this type of context, efficiency just gets eaten up by capitalistic greed, enabling even worse expansion. The International Energy Agency has said as much:

Whatever the dynamic here, Google is still ultimately seeing a massive, unprecedented rise in their emissions and energy consumption, seemingly for little reward. Their energy consumption per $m of revenue earned has grown 1.5x:

Google also repeat the tactically narrow focus on single queries, intended to present a clearly misleading visual of reduced impact:

Cool! Every chatbot query is only 9 seconds of TV! Let’s just compare this number to their total energy consumption…..

Let’s very conservatively assume only 15% of Google’s 2025 energy consumption was for AI. The company would have to receive 74.6 billion prompts a day, according to the 0.24 watt hour number above, to explain their energy hunger. ChatGPT, which is several times more popular than Google Gemini, claimed to receive 2.5bn prompts a day, in 2025.

If we assume 25% of their 2025 energy was generative AI, they’d need 124bn a day to explain the energy consumption. If 50%, they’d need 248bn (every single human being alive, including babies, sending 30 Gemini prompts per day).

Obviously, this is not happening. What is happening is that GenAI’s climate harm comes from the system design, such as Google’s AI overview triggering constantly whether users want it or not, in addition to significantly worse digital bloat tools dominating overconsumption.

The International Energy Agency explained this nicely, as well:

As they say above, the real problem lies in automated and recursive chatbot use, video generation and enterprise use (see: tokenmaxxing).

A rough estimate of doing as much generative AI coding as the CEO of Nvidia recommends : an increase of 2.7x of the global annual emissions footprint for the average person By Boris Gamazaychikovwww.linkedin.com/feed/update/…

Ketan Joshi (@ketanjoshi.co) 2026-04-28T06:19:01.391Z

Google are painting a shockingly misleadingly picture by focusing narrowly on their ‘efficiency’ metrics, whether that’s per-prompt or highly suspicious gargantuan avoided emissions figures. Both hide the fact the company is simply choosing the climate-wrecking road, consciously.

Other bits and pieces

Google claim to have brought 12 gigawatts of “net-new” clean energy online in 2025. If that’s true, it’s great. But the details are scarce and the caveats are ominous. These could be long-term power purchasing deals that have a strong effect of bringing new clean energy online, but they could also be comprised of weaker certificate trading. Why is there a “net” before “new”? It’s never explained.

These are important questions with unclear answers. Google’s headline emissions figure includes the various power deals and certificate purchases, and the difference is stark:

Google have been far less bad than many other technology companies, supporting large-scale clean energy projects and long-duration energy storage. They also support greater efforts to more closely match power consumption to renewable generation. On the flipside, Google has been pouring cash into gas and blatantly-not-going-to-happen CCS and fusion projects.

Ultimately, their power consumption emissions are rising whether you include these projects or not. Even their deep pockets can’t keep pace with their rising energy hunger.


This is the first time Google have disclosed water consumption for individual data centres (I think), and they weirdly include a table showing ‘golf course equivalent’ water consumption for each. I assume this was meant as a minimisation tactic following the whataboutism trope used by AI and data centre boosters, but I found the numbers pretty significant.

I hate golf courses: they’re the seizure of a massive amount of land and they consume an ongoing massive amount of public resource, all for the private enjoyment of a wealthy few. What a perfect metaphor for generative AI. If you have golf courses, you should hate data centres at least just as much, and usually, significantly more so.

Lean into whataboutism. They’ve got a point.
Turns out climate activists have consistent ideologies, who knew

The huge gap between “raw” and “claimed” total emissions comes from Google’s use of renewable energy deals and certificates, but a good chunk also comes from Google simply excluding a giant chunk of the emissions in their supply chain (“scope 3”). I’ve presented both below. Amusingly, they call the smaller number “ambition-based” emissions. They exclude much of the good and services they purchase from third parties on the grounds they can’t influence them. But they don’t disclose exactly what these are, so we can’t really check.

Google also blend Category 2 (capital goods) and Category 11 (use of sold products). This blended figure dominates their scope 3 emissions, and they also notably don’t exclude it from their headline numbers. Of course, this includes the stuff needed to build data centres, so that must be driving much of the rise in scope 3 in total.

  1. @ketanjoshi85 excellent post; wish it had image alts :(. I know alts for graphs are hard (took me a bit to write these) but it's a firm signal of inclusion or exclusion either way, and I've found writing alts for my own graphs and diagrams has really helped me to improve clarity: if it's tricky to describe in words, there are usually design choices that can be made to change that which also improve clarity overall (these graphs are already great, IMO; I'm just trying to extol the virtues of alt text because I don't boost things unless they have it or I have time to provide it and your posts are excellent and super important).

    Here are image IDs:

    First image is some Google exec, probably, giving a presentation. It's just a tone-setter.

    Second is a graph of annual power consumption of big tech firms. At the top it notes "annual sustainability reports + CDP submissions; terrawatt-hours electricity consumption per year; Amazon estimate: growth rate of location-based scope 2 emissions applied to last known energy disclosure (2022)." The graph's y-axis goes from 0 tp 80 terrawatt-hours-per-year. The x-axis runs from 2010 to 2026. There are line plots for Amazon (estimate), Google, Microsoft, Meta, and Apple. Exact numbers aren't readable from the graph, but I'll estimate. The Amazon line runs from ~12 in 2018 to ~40 in 2022, then becomes a fuzzy projection reaching ~45-60 in 2025. It's growth is roughly linear across those years with a slight upward bend that turns slightly downward during the projected portion.
    The Google line climbs from ~4 in 2013 to ~43 in 2025, with a classic exponential shape. The Microsoft line climbs from ~10 in 2020 to ~30 in 2025, also with an upward curve that could be part of an exponential. The points for Microsoft in 2023 and 2024 almost match Google's points for those years, being just slightly below them in both years. The Meta line climbs from ~2 in 2017 to ~15 in 2024, with a very slight upward curvature that gets reversed in the 2023-2024 jump (it still grew that year, just not by more than over the previous year). The Apple line runs from near zero in 2015 to ~3 in 2024, by all appearances linear on this scale. Note Google is the only series with a 2025 data point.

    The third image is another graph, this time showing just Google's increasing power demands, plotted next to a bar chart that shows per-country energy consumption for several different countries. The note at the top says "Google 2025 sustainability report, Ember GER 2024, terrawatt hours per year".
    There's a line graph for Google on the left, showing an exponential increase from ~7 in 2017 to ~42 in 2025, with notable steepening in the last two years of that climb. On the right, the bar chart includes (in decreasing order): New Zealand at ~43, Morocco just a smidge below that, Nigeria at ~41, then a few countries each just slightly less than the last, from Bulgaria at ~36 through Denmark, Serbia, and Ecuador to Ireland at ~35. Last is Slovakia at ~26.

    Fourth and final image is another line graph showing year-on-year changes in energy consumption of the same five companies from the first graph, over the same time scale. Note at the top reads: "Compiled by Ketan Joshi, annual sustainability reports + CDP submissions – terrawatt hours electricity consumption per year". The y-axis runs from 0 to 14 this time. As before exact numbers aren't legible so I'll estimate. The lines are roughly: Amazon jumps from ~4 to ~7.5 between 2019 and 2022 at a roughly linear rate (implying exponential total emissions as we saw in the first graph, since this is a linear increase in the rate of emissions year-over-year). Google from 2013 to 2023 moves from ~0.3 to ~3.5 at a linear rate with some wobble, then sharply changes rate to a much steeper line hitting ~6.5 in 2024 and then 12 in 2025 (there's only one data point per year so those two points are the entirety of the steeper part. Microsoft moves from ~3 in 2021 to ~6 in 2025; it's a roughly linear increase-in-increase with a steeper jump in the first year. Meta wobbles a lot, with ~2.5 in 2017 jumping down to ~0.7 in 2018, then climbing back to ~4 in 2023 with a dip in 2022, and falling back to ~3 in 2024. Would still have an increasing linear regression that roughly matches the slope of Google's gentler years. Finally Apple stays flat around ~0.3 from 2015 to 2024, dipping slightly in 2020 (consistent with its linear growth in the other graph).

    1. This is a great point – I do it for bsky posts and other social sites. I’ll add them all to this post and ongoing. Appreciate the nudge!

  2. @ketanjoshi85 Thank you so much for this 👏 It is horrifying but needs to be publicised as much as possible.

  3. @ketanjoshi85 Highway to Hell

  4. @ketanjoshi85 remembers the plastic recycling con…

  5. @ketanjoshi85 I think that also puts Google at or across the threshold. They're now consuming ~1% of all US electricity use. They're using up about the entire production capacity of a state like Nevada.

  6. @ketanjoshi85

    😨

  7. @ketanjoshi85 don't worry everyone – soon Google will figure out how to use AI to reduce their emissions!!!!

    (this is a great write up, love the use of visuals here too).

  8. @ketanjoshi85

    Is 43 Twh a lot or a little ?

    well total US is about 4 trillion kilowatt hours

    far as I can tell, converting from terawatt hours to kilowatt hours, 43 Twh is equal to 43 billion Kwh

    so Google is some tiny miniscule microscopic percent of total US energy use

    Electricity consumption in the United States was about 4 trillion kilowatthours (kWh) in 2025

  9. @ketanjoshi85 Great post! Just wanted to point out a typo: "If you have golf courses, you should hate data centres at least just as much, and usually, significantly more so." As someone who also hates golf courses, I think it should read "If you hate golf courses…"

  10. @ketanjoshi85

    This is hilarious! They're chewing their way to their own demise. It will go exponential until they crumble.

  11. @ketanjoshi85 hot damn! to be clear, the last graph means 'change' as in, a positive value means the total emissions have increased that year, right? so even apple's total emissions are increasing, just at a linear rate?

  12. Good article, but please consider making the charts a little easier to read for efficient science communication:
    – units on axis. e.g. having the first read ΔTWh/a – makes it immediately clear what I’m seeing
    – grids: especially with wide charts, I can’t read whether a point is 8, 10 or 12 if there’s no reference
    – “For the first time, I’ve compiled Google’s electricity consumption back to 2011” but the chart immediately below it shows data back to 2013

    Since the data is hand-compiled, unfortunate simple omissions like these make the article harder to trust and verify.

  13. Woulrd be useful to see related inflation data, rising cost of energy / water, electronics

  14. @ketanjoshi85 Thanks Google for being so verifiable evil. Truly unique company!

    Nazis were like that too. I wonder who’s gonna kill more people in the long run.

  15. @ketanjoshi85 Idea: How about exponential taxes? 🤔

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