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The Environmental Impact of Google Searches

paleshadows writes "The Times Online reports that researchers claim that each query submitted to Google has a quantifiable impact. Specifically, two queries performed through a desktop computer generate about the same amount of carbon dioxide as boiling a cup of tea. From the article: 'While millions of people tap into Google without considering the environment, a typical search generates about 7g of CO2 [whereas] boiling a kettle generates about 15g [...] Google is secretive about its energy consumption and carbon footprint. It also refuses to divulge the locations of its data centers. However, with more than 200m Internet searches estimated daily, the electricity consumption and greenhouse gas emissions caused by computers and the Internet is provoking concern. A recent report [argues that] the global IT industry generate[s] as much greenhouse gas as the world's airlines — about 2% of global CO2 emissions.'" Google makes an interesting focus for such claims, but similar extrapolations have been done before about, for instance, the energy costs of sending a short email.

25 of 516 comments (clear)

  1. Wrong Comparison by SydShamino · · Score: 5, Insightful

    Were there not a Google (or internet equivalent), I wouldn't sit back in my rocking chair, exclaim "Oh, well," and have a cup or two of tea. Instead, I'd get in my car and drive to the library to look whatever it was up in a reference book, or search the catalog for a book I could borrow on the topic.

    In that way, Google (or equivalent) saves energy.

    Now that said, I expect Google to do their best to minimize energy consumption. Given that their electricity costs directly hit their cost of doing business, I suspect they agree with this goal.

    --
    It doesn't hurt to be nice.
    1. Re:Wrong Comparison by SydShamino · · Score: 5, Informative

      It would be better if you rode the bus to the library. But that would be inconvenient. It says a lot about the issue that everybody (except all the kneejerk "skeptics" that will soon post on this story) cares about curbing greenhouse gases, but nobody is willing to make the troublesome lifestyle changes necessary to make a real difference.

      My city doesn't have bus service. So yes, waiting for a bus would be incredibly inconvenient.

      nobody is willing to make the troublesome lifestyle changes necessary to make a real difference.

      Does this include you? People aren't going to make huge changes because, for the most part, that doesn't make a big difference. Everyone making a small change has a much, much bigger impact than just a few people (those unselfish enough to care) making a big change. Raising the minimum legal mileage for new cars by one MPG would be a much, much bigger change than me riding a bike to work every day. (Not that I could given the distance, nor could both me and my wife given how far apart we work no matter where we move.) I can choose to not buy another car until one that gets high mileage from an alternative fuel source is available, which is what I've been doing for the last few years.

      I personally boil my tea and coffee water in the microwave.

      I drink tap water at whatever temperature it comes out of the cold faucet. That reduces my carbon footprint further. =p

      --
      It doesn't hurt to be nice.
    2. Re:Wrong Comparison by SetupWeasel · · Score: 5, Funny

      The Google servers should be made of wood, just as God intended.

    3. Re:Wrong Comparison by ion.simon.c · · Score: 4, Funny

      Dick.

      I think that you misspelled "You insensitive clod."

    4. Re:Wrong Comparison by Hadlock · · Score: 5, Informative

      I do know that actually. But transmission and distribution losses in the USA are estimated at 7.2%. If the longest feasable power line is 4000 miles long, and google is putting their data centers 4 miles from hydro electric plants, they're saving 7.2% more energy than other data centers on average (margin of error 0.001%).
       
      Transmission losses are one of the biggest arguments in heating the home with gas vs. electric, since with gas you're getting 100% of the avalible heat from the fuel, as opposed to electric where at most 90% of the heat is converted into electricity at the plant, you lose another 7% in transmission and then another 1-2% in the heater itself = 18-19% energy loss from a coal or natural gas power plant vs. heating with gas in the home.

      --
      moox. for a new generation.
    5. Re:Wrong Comparison by Thiez · · Score: 4, Funny

      Behold ladies and gentlemen, a false dichotomy in its natural habitat. Be careful not to apply logic in its vicinity.

    6. Re:Wrong Comparison by Hadlock · · Score: 4, Funny

      Russia only pulls that shit because everyone knows you don't start a land war with Russia during winter.

      --
      moox. for a new generation.
  2. That explains it by dbIII · · Score: 4, Funny

    the same amount of carbon dioxide as boiling a cup of tea

    That explains the infinite improbability factor that gives links to pron sites from nearly every innocent search.

  3. mandatory carbon credit purchases coming by Hanzie · · Score: 4, Insightful

    I expect our shiny new government is going to start taxing us on carbon soon. They are throwing money at failing businesses by the billions, while the tax base is collapsing. They are going to need to try to replace that cash somehow.

    --
    ********* sig: If you don't like the law, get filthy stinking rich, and buy a better one.
  4. I don't buy it... by quibbler · · Score: 4, Interesting

    I'd like to see the in-depth math on this, I don't buy these numbers, its smells of environmental-shock-value reasoning... Example - if they are dividing the total power used by google by the number of searches, that would only be applicable if google were working at 100% capacity and if *all* they did was searches...

    This is kinda like the Greenpeace founder who hated nuclear power till they read a freaking book. Boo.

    1. Re:I don't buy it... by Anonymous Coward · · Score: 4, Informative

      Google claims to use less energy than the user during the search:

      http://www.google.com/intl/en/corporate/datacenters/

      "The graph below shows that our Google-designed data centers use considerably less energy - both for the servers and the facility itself - than a typical data center. As a result, the energy used per Google search is minimal. In fact, in the time it takes to do a Google search, your own personal computer will use more energy than we will use to answer your query."

      The researcher claims that surfing produces 0.02g of CO2 per second.

    2. Re:I don't buy it... by LeDopore · · Score: 5, Interesting

      You're right. Here's some math:

      250g water in a cup of tea.
      Specific heat of water = 4186 J/kg/(degree C). (see http://en.wikipedia.org/wiki/Specific_heat_capacity).
      80 Celsius degree change from room temperature to boiling.

      To boil a teacup's worth of water, therefore it takes ~80 kJ.

      For this to be twice the energy consumed with one search, that's ~40 kJ per search.

      If a search takes Google about 100 ms, that means Google would be using 400 kW while responding to your search. That feels like it's about 3 orders of magnitude too high. It's possible that the original researchers got Calories and kCal confused.

      --
      Expected time to finish is 1 hour and 60 minutes.
    3. Re:I don't buy it... by ChrisMaple · · Score: 4, Insightful

      It would take spectacular dishonesty to fudge the energy to make a cup of tea an order of magnitude lower.

      The skepticism shown in this thread is fully justified.

      Efforts to operate more efficiently are not helped by fallacious arguments and mindless cheerleading.

      --
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  5. Drink less tea then... by nixkuroi · · Score: 5, Funny

    Time to have a global boston tea party and dump all the tea into the ocean. With roughly 2-3 billion less tea drinkers in the world, think of how many more searches we can do without impacting the environment! And think of those who drink multiple glasses. It's like a critical hit against tea/energy expense. Booyah! problem solved.

  6. Re:Good Lord... by iNaya · · Score: 5, Insightful

    There is no way the Earth could possibly support 7 billion hunter gatherers. To do that, we would need to cull our population to about 1.000.000, or our food supply would run out in very short order. We'd probably hunt EVERY SINGLE species on Earth to extinction, if we didn't eat their food source first.

    --
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  7. An old email relating to carbon footprint of data by Anonymous Coward · · Score: 5, Interesting

    I'm on this advisory group of 6 people and we wanted to participate in a 2 day conference by flying a representative there or through video conferencing. For some reason the carbon footprint argument was used IN SUPPORT of flying because of that recent news about data-centres being polluters. There was news that IT are going to be the 2nd largest cause of pollution in a few years, and therefore flying was somehow comparably damaging to IT.

    I thought that this was against common sense, but it was surprisingly difficult to understand the difference. If an ISP wanted to 'go green' what kind of carbon offset would they need to invest in, per Gig? I found a Harvard study[***] on banner ads that seems to be applicable to internet traffic in general.

    It's difficult to quantify and compare the two scenarios[*] but flying to London and back releases about 4,000 kilos of CO2[**] whereas sending 10G of data (video conferencing of youtube-quality video for 16 hours to 7 people) releases about about 100 kilos of CO2[***] + 30 kilos to run 7 computers for two days. While the plane's CO2 cost is only in terms of fuel (and not airports or surrounding infrastructure) the data CO2 from the Harvard study[***] is inclusive of wider infrastructure. Also planes releasing CO2 into the upper atmosphere do more damage than CO2 being released on the ground due to Radiative forcing.

    One interesting thing from the Harvard study relates to Moores Law, "we calculate that energy intensity of the internet declined by approximately an order of magnitude from 2000 to 2006. While energy use approximately doubled in that time period, data traffic grew by more than a factor of 20". Now I know that Moores Law is purely about transistor chip density so please don't misunderstand me -- I just mean that as computers and networks get faster the energy needed for 1 gig of traffic will decrease.

    So it's about 4000 kilos for flying ONE PERSON vs 130 kilos of video conferencing FOR ALL PEOPLE.

    [*] because of course it depends on how wide you consider the effects. Flight pollution should of course include airport pollution but how far do we go? Does it include power company polution for the power needed in the airport? It seems that a lot of IT studies are wider in scope than that of flight.
    [**] http://www.cheap-parking.net/flight-carbon-emissions.php for flying half way around the world and back.
    [***] Harvard Study on CO2 for data: http://www.imc2.com/Documents/CarbonEmissions.pdf

    ps. In New Zealand? Sign up to http://CreativeFreedom.org.nz

  8. Re:Good Lord... by edumacator · · Score: 5, Funny

    Let's just shut down every piece of modern technology and revert to a hunter-gatherer civilization. Will that make the enviornmentalists finally shut up?

    Nope. Then we'd be eating the animals, and that is not okay.

  9. Google will kill us all! by David+Gerard · · Score: 5, Funny

    A new study shows that using Google will destroy the planet. A typical Google search on a completely random topic such as "charlot chirch sex tape" produces enough carbon for 98 pencils or seventeen boiled kettles and brutally murders an average of two point four cute fluffy things.

    "A Google search has a definite environmental impact," said Alex Wissner-Gross of Harvard University. "Instead, you should use Windows Live Search — to be renamed Windows Love Search — which produces butterflies and baby seals. That's instead of whatever you were looking for, but hey — it's for the planet."

    Google is "secretive" about its energy consumption and carbon footprint. "Or at least, they told us to fuck off when we asked how many endangered species they'd killed off today. This proves their inherent malice. If you search using Google you may as well be strangling kittens. You should go to a trustworthy company of demonstrated moral fibre, like Microsoft."

    A recent Gartner report said the global IT industry generates as much greenhouse gas as the airlines industry. "Primary in this is the large quantities of hot air produced by completely independent analysts to support the views of the highest bidder."

    The Home Office welcomed the findings. "This proves that Internet users might as well be terrorists," said Jacqui Smith, "and so we'll treat them like they are. All Internet access in the UK will be run through Cleanfeed filters and your electronic ration book ticked off per web page used. Reading Wikipedia or the Guido Fawkes blog will, of course, be declared capital offences."

    Microsoft has demonstrated its environmental credentials by recycling Vista, its huge and lumbering Hummer of an operating system, as Windows 7. "All new and yet ... old," said marketing marketer Steve Ballmer. "Save the planet with Windows 7! Requires 4 core processor 2 gigabytes memory 500 gigabyte hard disk and basement nuclear power plant. Power plant sold separately."

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    http://rocknerd.co.uk
  10. Something they completely missed by CdBee · · Score: 5, Funny

    If I do enough google searches, the amount of emissions required to boil my kettle is reduced as the water is warmer to start with thanks to global warming..

    --
    I have been a user for about 10 years. This ends Feb 2014. The site's been ruined. I'm off. Dice, FU
  11. Your PC uses more energy waiting for a response by DrDitto · · Score: 4, Informative

    In fact, in the time it takes to do a Google search, your own personal computer will use more energy than we will use to answer your query.

    From http://www.google.com/corporate/datacenters/

  12. Re:The numbers don't add up. by Zerth · · Score: 4, Funny

    The article thinks a google search takes 15 minutes.

    They aren't incompetent estimators, they are incompetent searchers.

  13. Numbers don't seem to add up by pegacat · · Score: 5, Informative

    Some facts as I understand them snarfed from the web - corrections welcomed...

    rough cost of (wholesale) energy per kilowatt hour (kwh): ~5c
    CO2 cost per kwh: ~1kg (coal power: http://cdiac.ornl.gov/pns/faq.html)
    time for my (small) 1 litre (~ 1kw) kettle to boil when full is ~ 5 minutes which compares well with the theoretical energy for a 1litre at ~350kj, or 350 seconds time for 1kw . Hence power for a small boiled kettle is a killowatt for 1/10 of an hour, or 0.1 kwh

    So I get...
    Kettle boiling: costs ~.5c, and ~ 100g, ... the article says a kettle take 15g, which I don't get even close to; maybe clever people boil just enough to make single cups only?

    If the article was true, Google doing "more than 200m" searches a day would spend ~ $20m a day on power, or ~ $7billion a year, consuming 100,000 megawatt hours, or a continuous drain of 4,000 megawatts (about the power output of a small US state). On the authors figures, total power consumption would be ~ 650 megawatts, which is still pretty huge, and would still be spending ~ $1billion a year.

    Google use cheap, mass produced low power units in gigantic numbers - estimates are hard to come by, I will estimate 200,000 based on inflating some public estimates (e.g. http://arnab.org/blog/how-many-computers-does-google-have).

    Energy cost of networking is significant, but I do not believe as great as machines; I'll add 50% for good luck. Utility server machines are dropping in power (~100-200w) but also require cooling, UPSs and network etc., so let's call it 500w all up (figures are difficult to get; everyone is selling something power center wise) - so I get 100 megawatts; or 1/6th of the author's estimate, or 1/40th of the true kettle figure.

    I'd say that the author is overstating the case to make a political point - if I was cynical I'd point out the author has also just launched a business to 'green your web site' by installing monitoring software, estimating the energy cost of searches to it, and then buying carbon offsets on your behalf, so it is in his interests to overestimate such usage..

    --
    Wer mit Ungeheuern kämpft, mag zusehn, dass er nicht dabei zum Ungeheuer wird.
  14. Did the Author read this? by olddotter · · Score: 4, Informative
  15. Re:Mod Up by blueg3 · · Score: 4, Insightful

    You don't know this either. You've just been told by people who want to disagree with the media and organizations like the U.N.

  16. Re:Mod Up by Anonymous Coward · · Score: 4, Insightful

    I posted a very long list of scientific articles and papers that refute the CO2 and other greenhouse warming models. Saying that "nobody who's seriously studied it disagrees" is simply a false statement. Look it up if you want to.

    That sounded like an incredibly reasonable statement, so I went ahead and clicked on your link to take a look at the articles and papers you talked about.

    Turns out you had a bunch of links from obviously biased websites like "heartland.org" who seem to be some bullshit about how the free market is the solution to all problems, forces.org which has some bullshit "scientific evidence" that smoking is not really that bad for you, a republican senator's speech as some type of authority on the subject (not to mention that Jim Inhofe has a history of citing the Bible as support for his stance on issues...how scientific of him), and a blog.

    You didn't cite a single peer-reviewed article, and you excuse yourself for not doing that by first posting a bunch of links that aim to prove peer-review is flawed. I've been in academia, so I know it's not perfect, but peer review is sort of like democracy. It's the worst possible method to do things, except for all the others.

    And by the way, I am also seriously tired of -- and pissed off about -- being constantly modded as "troll" or "flamebait" for simply mentioning things that are backed by science and which I can support with plenty of evidence

    You don't post anything backed by science, though. If you want anybody to take you seriously, you must use peer-reviewed sources and only from reputable journals at that. Otherwise, your evidence amounts to shit kooks believe in.

    Now, that said, I'm not unsympathetic to the ultimate goals places like forces.org and hell, even heartland.org have. However, they need to accomplish their goal by not trying to bs the public. The evidence clearly points that smoking is horrible for your health. However, if people want to smoke, it's their goddamn life, and it's their right to risk it if they want to, I don't need some article showing some fake evidence that you're actually better off not quitting because the health risks of quitting are worse.

    Similarly, the evidence clearly points in support of greenhouse global warming. However, it makes absolutely no sense for us to leave less convenient lives and use less energy in an attempt to curb it. Even if all of us cut our energy usage by half, population growth and continued development of third-world countries will quickly cause total energy usage to grow significantly beyond current total usage. We need to control population growth by supporting birth control and improving economic conditions (developed nations actually have negative growth if you don't count immigration). We need to quit our fear of nuclear and build a bunch of breeder reactors, which are actually efficient with their nuclear fuel and have very low emissions.

    Basically, have the courage to say, "yes, global warming is real, but who the fuck gives a shit if polar bears go extinct? They're not the first species on the planet to do, and they won't be the last. Don't be a moron trying to claim "scientific" evidence exists while simultaneously claiming the only thing that makes scientific claims valid (peer-review) doesn't work and dismissing all the peer-reviewed papers because of it. You're just showing your ignorance.