41 Comments

Does the graph make sense? Yes it does, When might we see dots in the Green Quadrant? Beats me. Does it vindicate the de-growthers and energy restricters? No.

To elaborate a little, while the graph makes sense, as many have pointed out it needs familiarity with the subject, the ability to crunch numbers and a bit of reflection before it hits you in the proper place. Thus I would say it provides another angle of the same view, but it is not easily accessible.

One problem I have with it is that it feeds the current "hell of percentages" that we are living in. Yes, I do agree that the relative movement of energy consumption vs energy source is interesting. It does feed the increasing number of people who see percentages as absolutes rather than relative. A lot of people actually believe that one percentage can be compared to another, directly. In this figure, relative growth of fossil fuel use in the 1970's is a very different absolute than the same relative growth in the 2010's. And that is important for understanding the magnitude of the problem.

I do not think the graph makes it easy to understand the magnitude of the problem ahead of us, nor what that magnitude means in terms of how we should go about facing the problem. I apologize for saying that without offering how it could achieve that goal, because I believe criticism should be constructive.

The problem is not merely one of energy use and energy source. It is also about quality of energy, which includes the rather important parts of energy density, power density and energy storage. Many of the solutions promoted as replacements of fossil fuels lack severely in one or more of these parts. And I really do not believe that one graph or figure could capture the complexities in this issue.

That said, I do believe you have made a graph that brings a new and important angle of view on the discussion. At least for me it is a useful, as I am in the business of helping global shipping figure out how to get from here to there in a realistic manner.

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Oct 27, 2022Liked by Roger Pielke Jr.

Andy in TX suggested coloring the dots by decade. That might be revealing, but my guess is that the decades would be spread out in uninterpretable ways (unless energy consumption increase shows some temporal pattern). More revealing might be coloring the dots by global GDP growth of the year represented. My guess is that this would show the direct correlation between energy consumption and GDP growth, which is also a valuable lesson. (Someone else suggested a separate graph on this, but you might be able to depict it by coloring the dots appropriately.)

Another small comment: There is a typo in the top blue box. It should say "implied by a 50% [not 80%] reduction from 2020, 7.4%."

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The International Energy Agency believes that the current crisis in obtaining fossil fuels will drive nations to accelerate their use of renewables and nuclear, thus significantly reducing emissions, resulting in 2025 being the peak year for global emissions. Changing a nation's energy mix takes considerable time. Approval for new reactors especially. This projection seems optimistic to me? And if emissions peak in 2025, what does that say about emissions in 2030 or even 2050? Here are a few excerpts:

Carbon emissions from energy to peak in 2025 in ‘historic turning point’, says IEA

International Energy Agency says Ukraine invasion boosted state spending on clean energy and ‘will accelerate transition to renewables’

Global carbon emissions from energy will peak in 2025 thanks to massively increased government spending on clean fuels in response to Russia’s invasion of Ukraine, according to analysis by the world’s leading energy organization.

The International Energy Agency (IEA) said that government spending on clean energy in response to the crisis would mark a “historic turning point” in the transition away from fossil fuels, in its annual report on global energy.

The invasion of Ukraine has prompted an energy crisis around the world, with global gas prices initially surging. The crisis has caused steep inflation that has made households poorer around the world.

Governments have been scrambling to find other sources of energy. Some analysts have questioned whether fears over energy security could lead to the use of fossil fuels for longer, slowing the world’s race to net zero carbon emissions. Some countries – including the US and the UK under previous prime minister Liz Truss – have pledged to encourage fossil fuel extraction to try to ease prices.

However, Fatih Birol, the IEA’s executive director and one of the world’s most influential energy economists, said the energy crisis caused by Russia’s invasion “is in fact going to accelerate the clean energy transition”.

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Oct 26, 2022Liked by Roger Pielke Jr.

Are you able to plot some plausible projections? That would be quite interesting.

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Another point of view of the trend to be seen on

https://blog.mr-int.ch/?p=8581&lang=en

page 11 of the pdf document

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Excellent graph showing the magnitude of the challenge.

One detail however, which might weaken the magnitude: I reckon it shows primary energy? How would it look if it showed useful energy?

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I like the way you illustrated the huge divide between reality (the green square) and the 'renewable energy NOW!' narrative. However, I think your last paragraph is just more 'stardust and fairy tales' - there is no way renewables will EVER make it into the green square - they will just keep getting farther away as global energy needs continue to rise MUCH faster than renewable production does.

Now, if you REALLY want to get into the green square, the answer is nuclear power, and lots of it.

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Oct 25, 2022Liked by Roger Pielke Jr.

I like it but I agree with the others that it takes some thought to figure out.

Small point - I'd put the X and Y axes as thicker lines to make clearer the quadrants. And come up with some names for the other quadrants too. Putting dates on the data points (or perhaps coloring them by decade or some other periodization) would also be helpful.

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The graph is pretty clear after a bit of thought. The lack of a date axis was disorienting at first but date is not immediately relevant to the message.

It certainly makes the size of the required change in behaviour starkly obvious.

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Oct 25, 2022Liked by Roger Pielke Jr.

takeaway to me is that fossil fuel consumption is almost 1:1 with total energy consumption

impact of non-fossil fuels is negligible

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Oct 25, 2022Liked by Roger Pielke Jr.

need to put a date on the dots

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Energy for me, but not for thee.

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Oct 25, 2022·edited Oct 25, 2022Liked by Roger Pielke Jr.

The concept is good. I'd exchange the axes. Although this would put the Green Quadrant in the bottom right it would show that the policy objective would be to change (reduce) the slope of the Delta-Energy_Consumption: Delta_Fossil_Fuel_Use relationship. I think this is the point commenter Donald Rapp is making as well. Then rather than representing the SSPs as a quadrant in the graph, you could take a marker scenario (say, SSP2-4.5), analyse it in the same terms of Delta_EC and Delta_FF and show it as its own population of data points in the graph. You could also then highlight specific years in the SSP population (e.g. 2050, 2100) to illustrate where that SSP would take us. While you're at it, how about a similar graph, except instead of using change in fossil fuel use as a variable, show CO2 emissions? This would then show what the climate policy objective actually is: to decouple energy use from CO2 emissions. Not to decouple energy from fossil fuels in and of themselves. You could have "green quadrants" for any pair of variables in the Kaya Identity.

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Oct 25, 2022Liked by Roger Pielke Jr.

It’s a fantastic graph; perfectly clear to me. It shows how unrealistic the net zero by 2050 goal is.

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Oct 25, 2022Liked by Roger Pielke Jr.

I think that the two blue lines work well with the vertical and horizontal scales. There is some lack of clarity in understanding the black dots. Presumably, each black dot represents a year since 1965? According to the black dots most of these years had annual total energy growth in the range 0% to 7% with the bulk of data between 0% to 4%. A relatively few black dots occurred with negative change in total energy (I presume due to global recession) but only one of these points had an increase in total energy combined with a decrease in fossil fuel consumption. So your point is that (1) there is hardly any doubt that total energy consumption will increase in the future but there is no evidence yet that this can be coupled with a decrease in FF consumption.

Another aspect is that one could draw a 45 degree line passing through (0,0) where the change in total consumption = change in FF consumption, and when a data point lies above that 45 degree line, then the % increase in total consumption is greater than the % increase in FF consumption. In that case, the % contribution of FF to total has decreased (a desirable event) while when a black dot lies below the 45 degree line, FF consumption increased faster than the total (undesirable). While there are more points above the line, there are also quite a few below the line. The great goal of reducing FF consumption while increasing total consumption seems far away. A lesser goal of reducing the annual increase in FF consumption below the annual increase in total seems within reach?

But I think your main points are (1) The green quadrant represents the region where the total increases per year but FF decreases per year, and historically, we barely scratched the edge of that region, and (2) that all the black dots lie so far to the right that it seems like a herculean stretch for the world to move into the green quadrant, let alone within the blue lines in the green quadrant.

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Oct 25, 2022Liked by Roger Pielke Jr.

The graph makes sense to us nerds who take the time to think it through. Pick your percentage of the general population that falls into this category................I pick ..01%.

I think targeting filling the green quadrant with data because of fears of the impacts of climate change is a fools errand. Increased global energy consumption will continue and is a measure of success in addressing society's needs. See the work of Mark Mills.

Those advocating intentional degrowth or energy consumption restrictions because of the fears of climate change are..................pick your noun ..............I choose "fascists".

There is overwhelming evidence that society is robust enough to deal with whatever climate change can through at us by adapting. If I am wrong about this......so be it! But I am not wrong about this.

If the purpose of this post is to demonstrate that Net Zero targets are ludicrous and that we need to move on to develop rational energy policies, you have succeeded.

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