Not the first time I've posted this, but I always find it quite fascinating how well it continues to hold. For over *two thousand years*, atmospheric CO2 perturbations have scaled with the world GDP. Aren't the implications for climate change mitigation pretty simple...?
01.08.2025 21:21
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Glen, what are the uncertainties on the emissions? Could they be underreported for political reasons that introduce a flattened trend eg post Paris?
23.03.2025 21:25
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The monitor packaging said 50% brain capacity at 1500 ppm which seems exaggerated. Iβm frequently 50% at much lower levels
14.03.2025 03:51
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I find I can do scientific writing up to 5000 ppm. 40,000 is what I read as the limit. Like non-vented gas fireplaces are widely sold. Seems like a bad idea to me but presumably thereβs other reasons humanity cognition is cratering
13.03.2025 18:37
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I got my cabin up to 6000 ppm recently. Exercise in paleo time travel
11.03.2025 04:33
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Of course, but comparing numbers with different units is the sort of thing education is supposed to fix
15.02.2025 21:29
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Different units as one is annual. The two numbers canβt be compared as presented
15.02.2025 18:32
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Through a research program for undergrads sponsored by the Deanβs office I am able to accomplish research goals it would be harder to do otherwise through my grants, impossible through department overhead. Does the Deanβs cut matter if itβs well spent?
10.02.2025 03:18
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Can you elaborate on what that 10% of indirects you mention went towards? It's not obvious how the dean controlling the money is a problem.
08.02.2025 17:46
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In 2017 at a small meeting in Switzerland on energy and the economy, experts scolded me that the economy would collapse from resource depletion and debt, certainly by 2025. I argued inertia would keep it growing longer (not forever). Here we are. Physics actually works! Always.
05.02.2025 19:06
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Origami Black Hole xkcd.com/3033
03.01.2025 19:02
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FAQ on the Garrett theory of economic growth
YouTube video by Economic Growth and Collapse
I developed an economic theory that underscores how energy and matter are the twin cornerstones of economic activity and growth, how mitigating climate change will require a fundamental restructuring of society. Here's a nice video produced about it
www.youtube.com/watch?v=soXW...
31.12.2024 19:11
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What do you mean clouds are heavy? As a cloud physicist that strikes me as an odd comment. Relative to what? Their density is on average the same as surrounding air
30.12.2024 06:17
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YouTube
Share your videos with friends, family, and the world
Tim Garrett
@nephologue
Human history is the tension between boundless exponential expansion and the harsh reality of resource depletion and pollution. Can innovation forever keep us afloat, or will nature hasten our demise? A new video:
t.co/B35B4YBRSl
29.12.2024 23:59
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FWIW Iβm a professor of Atmospheric Sciences. This stuff is just a side gig. You should make your own content !
28.12.2024 20:39
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The physical origins of economic Wealth
YouTube video by Economic Growth and Collapse
New video. Our economic models are unscientific: their assumptions cannot potentially be disproved. Starting ground-up from thermodynamic principles, we can build new economic models that make the testable predictions we need to guide our economic future
www.youtube.com/watch?v=xFh0...
28.12.2024 18:17
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The physical limits to economic growth
YouTube video by Economic Growth and Collapse
We must face the limits to our economic growth. Civilization thrives on high availability of energy and material resources, but at the cost of pollution and depletion. Traditional economics trivializes these constraints and risks hastening our collapse
www.youtube.com/watch?v=Ip5l...
21.12.2024 16:12
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Humanityβs economic conundrum
YouTube video by Economic Growth and Collapse
Civilization grows by efficiently using an energy surplus to transform the earth's crust into the stuff of us.
However, growth has limits. Resource depletion and internal decay will tip us towards collapse. A new video:
www.youtube.com/watch?v=hOdo...
19.12.2024 23:23
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Economic Growth and Collapse
The basis is non-equilibrium thermodynamics, which may sound daunting, but these concepts underlie our lives. I think the animations led by Michael Fardos really help develop an intuitive understanding of economic growth and decline. I hope you enjoy
www.youtube.com/channel/UCA6...
18.12.2024 19:09
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Key topics covered by the channel include efficiency, innovation, climate change, climate damages, energy and raw material resources, consumption, depletion, pollution, GDP growth, and economic inflation
18.12.2024 19:09
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The goal of the channel is to describe in a very accessible way some of the findings from work I've done describing how the global economy evolves, using concepts from physics rather than traditional neoclassical economic growth models
18.12.2024 19:09
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Economic Growth and Collapse
I'll be posting a series of videos on economic growth and collapse from this @YouTube channel spurred by Michael Fardos
www.youtube.com/channel/UCA6...
18.12.2024 19:09
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Why oil rather than eg natural gas?
17.12.2024 03:30
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Economic Growth and Collapse
Check out this new @YouTube channel about economic growth and decline. Civilizations rise exponentially, only to become fragile as resources deplete and decay sets in. The path of expansion, discovery, and collapse seems defining. But can innovation sustain us?
www.youtube.com/channel/UCA6...
16.12.2024 20:15
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The first five enabled humans to thrive to the point they harmed the last four. Science is great. It is also the engine driving our ability to consume and pollute at planetary scales
12.12.2024 04:20
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