mars 2021

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Geoengineering på hög nivå

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  • Running Short of Tailwinds for the Economy 22 november, 2023
    Strangely enough, the economy seems to move from tailwind to tailwind, as new resources are discovered, as population expands, and as central banks figure out new ways to fix the economy. In this post, I will describe some tailwinds affecting the economy. Many of these have recently lost their value or are likely to lose […]
  • Beliefs Should Change with Evidence 9 december, 2023
    You can’t say that I don’t change my beliefs when presented with new evidence by smart experts with integrity. Thanks to Dr. Jonathan J. Couey, I am in process of overturning much of what I thought was true about covid: If the above is true, and I suspect it is, the narrative I have been […]
  • Do you want to eat, drink, or fly? 6 december, 2023
    Preface.  In this post the New York Times writes about renewable airplane fuel from corn ethanol, and questions whether there is enough water and a few other problems.  First I’m going to summarize their issues with this, and then follow … Continue reading →

Do the Math som e-bok.

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Tom Murphy har kommit ut med en e-bok, ”Energy and Human Ambitions on a Finite Planet” som finns att ladda ner här. Den är en värdig efterträdare till en annan bra bok. David MacKay’s e-bok ”Sustainability: Without the Hot Air”, som mer fokuserar på förhållanden i Storbritannien. Detta borde vara standard litteratur för alla som pratar om hållbar energi.
En kort video med Tom och Abstract:

Where is humanity going? How realistic is a future of fusion and space colonies? What constraints are imposed by physics, by resource availability, and by human psychology? Are default expectations grounded in reality?
This textbook, written for a general-education audience, aims to address these questions without either the hype or the indifference typical of many books. The message throughout is that humanity faces a broad sweep of foundational problems as we inevitably transition away from fossil fuels and confront planetary limits in a host of unprecedented ways—a shift whose scale and probable rapidity offers little historical guidance.
Salvaging a decent future requires keen awareness, quantitative assessment, deliberate preventive action, and—above all—recognition that prevailing assumptions about human identity and destiny have been cruelly misshapen by the profoundly unsustainable trajectory of the last 150 years. The goal is to shake off unfounded and unexamined expectations, while elucidating the relevant physics and encouraging greater facility in quantitative reasoning. After addressing limits to growth, population dynamics, uncooperative space environments, and the current fossil underpinnings of modern civilization, various sources of alternative energy are considered in detail— assessing how they stack up against each other, and which show the greatest potential. Following this is an exploration of systemic human impediments to effective and timely responses, capped by guidelines for individual adaptations resulting in reduced energy and material demands on the planet’s groaning capacity. Appendices provide refreshers on math and chemistry, as well as supplementary material of potential interest relating to cosmology, electric transportation, and an evolutionary perspective on humanity’s place in nature.

un-Denial har ett längre inlägg med några föredrar av honom.

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