Category Archives: Experts

experts in energy, ecology, collapse, carrying capacity, biophysical and neoclassical economics, etc.

Paul Chefurka: More thoughts on Sustainability

The critical feature of sustainability isn’t how many people can be supported by the planet at any given moment in time. Rather, it is the number of humans that could live here without irreparably damaging the biosphere we depend on … Continue reading

Posted in Paul Chefurka | Tagged | 4 Comments

Charles Hall: politicians and economy do best when oil is cheap

Preface. Politicians claim credit for a good economy, but what makes an economy prosperous? Cheap oil. During Trump’s reign “relatively cheap oil and gas are keeping the U.S. economy strong. But this cheap oil and gas is being partially subsidized … Continue reading

Posted in Charles A. S. Hall | Tagged , , , | 2 Comments

William Rees: Memo from a Climate Crisis Realist: The Choice before Us

Preface. I’m going to put Rees’ conclusion of 11 things to do first (rather than the Green New Deal, which can’t possibly work), followed by his arguments for why this needs to be done (if you haven’t read part 1 … Continue reading

Posted in Climate Change, Experts, Experts | Tagged , , , | 5 Comments

William E. Rees: Don’t Call Me a Pessimist on Climate Change. I Am a Realist

Preface. William E. Rees is professor emeritus of human ecology and ecological economics at the University of British Columbia. He’s one of my favorite ecological writers and has written about energy, limits to growth, sustainability and other ecological topics for … Continue reading

Posted in Climate Change, Experts, Experts | Tagged , , , | 5 Comments

When wood once again becomes our main energy source, how long will it last?

Preface. Since we’re going back to wood as our main energy and infrastructure source after fossil fuels deplete, I thought it would be interesting to try to get an idea of how wood stacks up against other energy resources (below).   … Continue reading

Posted in Nate Hagens, Where to Be or Not to Be, Wood | Tagged , , , | 1 Comment

Vaclav Smil on natural gas (ethane) and plastics

Preface. Vaclav Smil doesn’t mention using plastic for heat, but in a letter to The Guardian, David Reed suggests: “The effort of collecting, transporting and cleaning plastics for possible recycling has largely failed, created much more pollution and contributed massively … Continue reading

Posted in Natural Gas, Vaclav Smil | 2 Comments

Bodhi Paul Chefurka: Carrying capacity, overshoot and sustainability

Preface. This is a post written by Bodhi Paul Chefurka in 2013 at his blog paulchefurka.ca here. I don’t understand his ultimate sustainable carrying capacity based on hunter gatherers. Why will agriculture go away? But the rest of the article … Continue reading

Posted in Overshoot, Paul Chefurka, Population | Tagged , , | 7 Comments

The carbon trap by Paul Chefurka

Preface. We are caught in the carbon trap — we utterly depend on fossils that don’t have an electric replacement. Someday people will figure this out the hard way, but Chefurka compassionately points out that there is no one to … Continue reading

Posted in Consumption, Human Nature, Interdependencies, Paul Chefurka | Tagged , , | 16 Comments

Will California’s high-speed rail go off the tracks? Challenges facing California’s high-speed rail. House Hearing 2014.

Preface.  In 2019, Gov. Gavin Newsom said “there simply isn’t a path” for completing the project “from Sacramento to San Diego, let alone from San Francisco to L.A”. Originally the project was going to cost $33 billion, by 2014 when the … Continue reading

Posted in Railroads, Transportation | Tagged | 3 Comments

Part 2. How long do civilizations last on average? 336 years

I stopped trying to find out why each civilization failed in Wiki because it’s not always clear and historians bicker over it, though it’s clear drought, invasions, civil wars, and famines played a role in most of them.  Yet what’s … Continue reading

Posted in Cambridge Centre Study of Existential Risk, Collapsed, Scientists Warnings to Humanity | Tagged | 4 Comments