Saul Griffith, “Climate Change Recalculated”
January 19th, 02009 by Stewart Brand

The Terawatt World
Engineer Griffith said he was going to make the connection between personal actions and global climate change. To do that he’s been analyzing his own life in extreme detail to figure out exactly how much energy he uses and what changes might reduce the load. In 2007, when he started, he was consuming about 18,000 watts, like most Americans.
The energy budget of the average person in the world is about 2,200 watts. Some 90 percent of the carbon dioxide overload in the atmosphere was put there by the US, USSR (of old), China, Germany, Japan, and Britain. The rich countries have the most work to do…
Read the rest of Stewart Brand’s Summary
This entry was posted on Monday, January 19th, 2009 at 2:56 pm and is filed under Seminars. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Posted on January 19th, 2009 at 4:22 pm
This post is confusing because it has no links and no context. But it seems this is in regards to a talk given last Friday (1-16-02009):
http://www.instructables.com/community/Climate_Change_Recalculated_Talk_with_Saul_Griffit/
Looks like there might be a video here:
http://blog.wattzon.com/2009/01/19/talk-at-long-now-foundation-jan-16-2009/
Last year, I read a summary of a similar talk Saul gave at ETech 2008 and did a similar set of calculations that convinced me to give up most of my business travel. Months later I found a PDF from that talk:
http://assets.en.oreilly.com/1/event/8/Energy%20Literacy%20Presentation.pdf
And later still, a video:
http://blip.tv/file/1018152
Posted on January 20th, 2009 at 1:18 am
For me the key phrase here is “strangely exhilerated.” There’s an remarkable amount of predictive science that says if we don’t do something we are in big trouble – never before has such a body of work been assembled. But acting on that science is an even more gargantuan task. This is where social science, neuroscience and culture need to come together to create that sense of “strange exhileration…”
Posted on January 20th, 2009 at 4:27 am
According to Wikipedia (”Automobile industry in China”), over 9 million cars were made in China in 2008 alone. If you could make that many 300-ft wind turbines each year for three years, that would be the whole of your 25-year 11.5-terawatt quota (for the 450 ppm target). The extra 26% required by 350 ppm might require four years, rather than three.
I also note that China made all those cars without a national mobilization for the express purpose of making cars. It’s great to see these calculations, but they should now be compared to the efforts that go into making ordinary consumer items by the hundred million. Maybe “business as usual” can save the planet after all.
Posted on January 20th, 2009 at 7:11 am
[...] salient points about issues without oversimplifying them. Over at the Long Now Blog, he has a summary — citing engineer Saul Griffith — on what would have to happen in order to make much of [...]
Posted on January 21st, 2009 at 4:28 am
Wait, I see I read that article wrongly – I thought Griffith had calculated what would be required to meet the energy demand only using one type of clean energy – solar OR wind OR geothermal, etc. But I see he’s describing a “multi-wedge” strategy in which everything contributes. So three or four years of intensive manufacture of those big wind turbines, at Chinese volumes, still only produces about a fifth of what’s required. Very well. Still, it will remain difficult to judge how intimidated one should be by these figures, until they can be compared to the big activities that global industrial society already manages to carry out, e.g. China opening a new coal-fired power station every two weeks.
It may make more sense to think about these things in terms of space rather than time: i.e. can one find the *space* to locate all those wind farms, nuclear and geothermal power plants, PV panels, solar thermal collectors, and biofuel plantations? If that can be done, one can then think about the labor, capital, and material resources required to put them there. Finding the labor, at least, I think would be no problem, in a world of billions.
Posted on January 23rd, 2009 at 1:53 pm
The CO2 target is no longer 450 or even 350 (e.g,. http://www.350.org); it is closer to 300! See “350 is the wrong target: put the science first”.
Posted on January 23rd, 2009 at 3:12 pm
[...] it would take to generate our power from renewable sources in the next 25 years. For illustration, Griffith talks about the impact of solar energy, or [...]
Posted on January 29th, 2009 at 1:41 pm
Watts? Terawatts? That is a rate of consumption of energy — not a quantity of energy. What gives? Does he mean watt-hours — or terawatt-hours? I can’t believe Saul Griffith doesn’t know the difference between a power term and an energy term. Is it a misprint? A typo in the article????? Inquiring energy engineers would like to know……
Posted on January 29th, 2009 at 9:46 pm
The space, resources and money to do such a thing are not really an issue. As was pointed out earlier, we already spend far more on stuff we already produce. How much land is taken up by roads and carparks? How many tonnes of steel and concrete in skyscrapers being built this year? How many Watts are used by shopping malls and offices at night when nobody’s there? And so on.
The space, resources and money are already there, it’s just a matter of where we choose to put them. That said, it’s a big task. To get an idea of the scale of the task it’s not enough to simply look at what energy we’re using now and then convert it all to renewables. There are after efficiencies available. The other day I was talking with a couple who spend $150 weekly on groceries, are overweight and unhealthy (many minor ailments) and throw away about 1/3 their food uneaten; this compares to us on $60 weekly, fit and eating tasty food, wasting nothing but the peelings. For them to improve their health wouldn’t involve just buying $150 of lentils instead. They need to spend their money better, and make more efficient use of the things they buy.
Likewise with energy. Using a tonne of metal and plastic to move an average of 1.6 people is simply never going to be as energy-efficient as using 7 tonnes to move 25 people, or 25 tonnes to move 150 people. So that we in the West could be using a lot less energy per person while achieving the same things, and actually saving money and improving quality of life. This is a nice coincidence since those in the Third World would also like a decent quality of life, too. How much energy is needed?
I talk about more efficient energy use here, and making sure all get a fair share here. I conclude that about 2,000W of renewable electricity per person would do it. This is bit less than suggested in the article above, but I also mention population growth – since in the 25-50 years we’d take to do it, population would max out at 9-10 billion around 2050. So we’re looking at 18-20TW of delivered energy.
Can we manage it? Technically it’s possible but politically and culturally it’s difficult. I think more plausible is getting about halfway to that goal. The future I most fear is not a Mad Maxian dystopia, but something like our modern gated communities as ecotopias, with 10,000W of renewable energy zipping around in electric cars, surrounded by impoverished slum-dwellers with 0W who are near-slave labour in the sugar cane fields making biofuels and cleaning the ecotopians’ houses.
Posted on February 3rd, 2009 at 9:43 am
[...] the previous post was overly optimistic. On the way to work today, I listened to a recorded talk given by Saul Griffith to The Long Now Foundation titled “Climate Change Recalculated”. The antagonist in his [...]
Posted on February 5th, 2009 at 10:14 am
When did nuclear become a “clean energy”?
I understand that there is little if any CO2 given off, however to suggest that nuclear power is in anyway clean or safe, even by using “French Standards” is the same short sighted thinking that produced ideas like going to Iraq or the free market.
What I’m poorly trying to say is that, we need to be more accurately selective when choosing adjectives that completely change the noun in question.
It would be like saying “good Lucifer”, when comparing he with Satin? So, Lucifer’s GOOD? and George W is smart when compared to a second grader in a developing nation, my apologies if he was your guy.
Please let us be more accurate with our language so we don’t talk ourselves out of our values and right off of this planet!
Thanks again,
Peace, Love & Understanding,
Van
Posted on February 9th, 2009 at 10:56 pm
Saul refers to a site I had a little difficulty finding (listening to the mp3) https://www.wattzon.com/ where you can calculate and compare your own personal power consumption.
Posted on February 9th, 2009 at 11:29 pm
[...] Stewart Brand’s Long Now Blog: That would mean the following. (Here I’m drawing on notes and extrapolations I’ve written up [...]
Posted on February 10th, 2009 at 9:19 am
[...] on the Long Now blog a few weeks ago Stewart Brand posted some climate change calculations taken from a talk by Saul [...]
Posted on February 10th, 2009 at 3:44 pm
Thank you @OliverX for the links! For more on Saul, he did a Ted Talk in 2006: http://www.ted.com/index.php/talks/saul_griffith_on_everyday_inventions.html – It’s more of an overview of his various projects including some scary/exciting notions on programming biology.
Posted on February 10th, 2009 at 4:54 pm
[...] of Stewart Brand’s explanation of the Seminars About Long Term Thinking (SALT) talk titled “Climate Change Recalculated” by Saul Griffith. Actually, it’s Brand’s closing paragraph – I rearranged. It reminds me of [...]
Posted on February 11th, 2009 at 9:13 am
[...] inspired by this talk from the Long Now foundation (don’t ask me how), I got thinking about concept cars, and in particular how ridiculous they [...]
Posted on February 16th, 2009 at 12:29 am
“The era of procrastination, of half-measures, of soothing and baffling expedients, of delays, is coming to its close. In its place we are entering a period of consequences.” W. Churchill
It’s uplifting to see that there are people like Saul who have made the connection between their personal actions and global climate change and who are quantifying what’s required to save the environment. While I applaued Saul’s effort I don’t see it amounting to much. To paraphrase Orlov and his comments regarding “Social Collapse” this past Friday, this is Tinkerbell type thinking, yup, wave the fairydust around, close your eyes and start praying.
What we already know is that significantly reducing our country’s collective carbon footprint is a lot like dieting, easy to talk about but really, really hard to do. Even if we can develop and stick to a realistic “carbon” diet we can’t be sure that the rest of the world (India & China) will stick to theirs in which case the problem remains. So unless somebody out there thinks that we’ll be able to borrow a few extra trillion dollars to pay for all of these energy infrastructure initiatives (many of which like new nuclear power plants will take years to construct) then it might be worthwhile to be a wee bit more pragmatic about how soon or how easily we’ll be able to get to the promised land.
Posted on February 20th, 2009 at 4:13 am
How someone can write an article like this without mentioning marijuana is beyond me. What is the stat? Correct me if I am wrong – but when it come it making paper – 1 acre of marijuana = 4.5 acres of trees. I wonder how many carbon credits we could claim for legalizing marijuana?
Posted on February 21st, 2009 at 12:59 am
Or our global economy can collapse and energy consumption and likely population can plummet. Won’t be fun for anyone but is probably the best scenario for a healthy planet in the future.
Posted on February 27th, 2009 at 3:08 am
[...] clear explanation of how we live and how we must live in future. A genius. Listen to the podcast on http://www.longnow.org and see the slides [...]
Posted on March 18th, 2009 at 7:07 am
[...] has finally sent off alarm bells. We are told repeatedly, by several voices including Dmitri Orlov, Saul Griffith, Kevin Kelly, Alex Steffen, Kazys Varnelis, to name a few, that things are really, really not going [...]
Posted on April 9th, 2009 at 11:44 am
How arrogant is this? We can’t even cure the common cold, and you’ve got a plan to change the weather? Without collapsing the global economy? I got news for you, the weather has been changing since time began – well before GM brought out the Cadillac Escalade. How many people will die because you’re pushing this agenda? Everybody who makes anything that could be consideered carbon-positive is out of a job. All those people in South America clearing farmland should just stop trying to feed themselves? Who will take care of them while you’re playing mother nature. Moron.
Why don’t you liberals show some intellectual honesty and just admit you want to control energy so you can control people? It’s a power thing.
Posted on April 10th, 2009 at 8:48 pm
To IP Freely: Never mind the politics at the end of your comment. You are not offering any ideas. Not that there are any easy answers. We cannot address environmental issues without addressing the economy. We must create jobs through addressing the environmental issues. We have the perfect opportunity. We did not need to go to the moon. We declared that it was important to demonstrate our technical superiority to the USSR and then created a challenge that in the process of meeting it created a whole new economies and technologies. We have a much graver threat than during the cold war. Mother Nature has proven she remains just as adept as humans at destruction. Yes of course people do need to eat, they will need to eat 100 years from now too.
We need to everyone to put their intellectual/creative back into this. INCLUDING YOU! Stop making people you disagree with wrong and find ways to common goals. If the house is on fire I don’t care who you voted for, we are on the same side. It is just a fact.
Posted on April 10th, 2009 at 8:54 pm
[...] was reading an post about a guy named Saul Griffith who has taken it upon himself to personally shrink his carbon footprint. It was a very inspiring [...]
Posted on April 18th, 2009 at 8:09 am
More than 70 % of the world’s population live this way.
Thrifty, conservative with all resources. Much more important is soil conservation, ( no-till cultivation) food security and protection of water catchement areas from pollution.
CO2 Paranoia is a hoax and a ruse by over eager politicians to tax the air we breathe.
CO2 is essential to all carbon life forms on earth.
We are very fortunate to be alive during a interglacial optimum which may be over sooner that you think.
It makes sense to conserve fossil fuels and promote sustainable energy sources as the human race will need them during the next ice age. A little extra CO2 in the atmosphere will add to the food chain as the global population expands.
Posted on May 1st, 2009 at 11:20 am
[...] did a fabulous job of setting the context for the green business camp. He summarized the work of Saul Griffith to underline the theme that to deal with climate change we need an incredible plan. I think a great [...]
Posted on July 14th, 2009 at 7:10 am
[...] such a bad idea. And changing ourselves into long-term thinkers might be our best bet at sustainability. This stuff is important, and bacon and pig roasts are a fun gimmick. But a part of me rejoices that [...]
Posted on August 9th, 2009 at 12:53 pm
I agree that links to the video, podcast and slides should be included in summaries:
The Video:
http://fora.tv/media/rss/Long_Now_Podcasts/video/2009-01-16_griffith_mpg_16×9_LNP_itunes.mp4
The Slides from the Video:
http://www.slideshare.net/raffikrikorian/wattzon-presentation-at-long-now-presentation
Posted on August 28th, 2009 at 12:54 pm
[...] his Seminar for the Long Now Foundation in January, Saul Griffith mentioned what he called the Rolex/Montblanc Pen approach to solving climate change. As a way of [...]
Posted on August 29th, 2009 at 8:58 pm
@May: Well done for speaking the truth in a comment section full of warmer parrots.
It is indeed quite bizarre that a lecture supposedly advocating long-term thinking would completely fail to examine the long-term history of Earth’s climate. As anyone who does not live under a rock would know by now, the Earth’s climate is always changing, so at any time it is always a case of either global warming (in the literal sense) or global cooling. Superior ice core sample analysis techniques developed since 1997 revealed several facts which the “CO2 paranoid” would do well to sequester:
* The Earth has been warmer in the distant past than today,
* The Earth has had CO2 levels over 10 times higher in the past than today,
* The rate of CO2 increase has been higher in the distant past than today,
* The rate of temperature increase has been higher in the distant past than today,
and all without any assistance from human activity.
That is the truth as best as anyone can measure it, just as global warming seemed the truth as best as anyone could measure it during the early nineties. The “best” got better and so the facts changed. Of course the fundamentalists have not moved on from there, seemingly stuck in past and choosing to believe in a scary and guilty future instead of adapting to the more precise results of later research.
With these facts in mind, and remembering the only source of heat on Earth is the Sun, why would anyone assume that the greenhouse effect drives climate change or that recent increases in either temperature or CO2 were due to human activity?
A true long-term thinker (or those with a suitably long term view of climate such as geologists) would immediately see that the present is totally within the long-term natural range of climate.
See:
Dr Roy Spencer – http://www.drroyspencer.com/
Top 15 Climate Myths – http://ilovecarbondioxide.com/2009/01/top-15-climate-myths.html
Dr Bob Carter – http://members.iinet.net.au/~glrmc/new_page_1.htm
Posted on August 30th, 2009 at 6:53 pm
[...] To meet the current world population’s current energy requirements, we would need to collect the incident sunlight over an area about the size of Australia. That’s a stupendous amount of solar power to build. It will be a very long time before it is [...]
Posted on September 17th, 2009 at 4:01 pm
[...] his Seminar for the Long Now Foundation in January, Saul Griffith mentioned what he called the Rolex/Montblanc Pen approach to solving climate change. As a way of [...]
Posted on September 22nd, 2009 at 1:27 pm
[...] of Squid Labs and MacArthur genius grant winner, Saul Griffith was the keynote speaker. Saul explained that he takes an engineer’s approach to climate [...]
Posted on October 21st, 2009 at 5:36 pm
[...] Blog summary [...]
Posted on November 5th, 2009 at 4:47 am
[...] Saul Griffith, “Climate Change Recalculated” – The Long Now Blog November 5, 2009 | by 1 Comment “Two terawatts of photovoltaic would require installing 100 square meters of 15-percent-efficient solar cells every second, second after second, for the next 25 years. (That’s about 1,200 square miles of solar cells a year, times 25 equals 30,000 square miles of photovoltaic cells.) Two terawatts of solar thermal? If it’s 30 percent efficient all told, we’ll need 50 square meters of highly reflective mirrors every second. (Some 600 square miles a year, times 25.) Half a terawatt of biofuels? Something like one Olympic swimming pools of genetically engineered algae, installed every second. (About 15,250 square miles a year, times 25.) Two terawatts of wind? That’s a 300-foot-diameter wind turbine every 5 minutes. (Install 105,000 turbines a year in good wind locations, times 25.) Two terawatts of geothermal? Build 3 100-megawatt steam turbines every day-1,095 a year, times 25. Three terawatts of new nuclear? That’s a 3-reactor, 3-gigawatt plant every week-52 a year, times 25.” via blog.longnow.org [...]
Posted on December 2nd, 2009 at 8:52 am
[...] Saul Griffith has internalized these calculations, but most of us need help. A next-gen Kill-A-Watt that did these sorts of conversions and comparisons could be a real behavior changer. [...]