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- Ugo Bardi’s The Universal Mining Machine
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- 328 Million Americans use 3.2 million pounds of minerals, metals, and fuels in their lifetime
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Monthly Archives: June 2019
Humans destroyed 10% of wilderness in just 25 years
Preface. Humans are destroying the wilderness so quickly there it could mostly disappear in less than a century. Since 1993 the world lost an area twice the size of Alaska. So kiss biodiversity, carbon sequestration, ecology, and a stable climate … Continue reading
Decommissioning a nuclear reactor
Preface. Below are excerpts of articles about the costs and challenges of dismantling nuclear power plants. This is at the top of my “Energy Descent To Do List” given the consequences for future generations for up to a million years, … Continue reading
Posted in Nuclear, Nuclear Waste
Tagged decommission, nuclear
Comments Off on Decommissioning a nuclear reactor
We evolved to exercise and need high levels of physical activity to be healthy
Preface. This is a summary of Herman Pontzer’s 2019 “Humans evolved to exercise. Unlike our ape cousins, humans require high levels of physical activity to be healthy” in Scientific American. As fossils decline, it’s almost guaranteed you’ll use more muscle … Continue reading
Groundwater rise. Yet another climate change threat.
Preface. In coastal areas flooding is likely to be caused from groundwater rise because as sea levels rise, they won’t only move inland, flooding low-lying land near the shore; but also push water up from the saltwater water table, on … Continue reading
Posted in Floods, Groundwater, Hazardous Waste, Sea Level Rise, Water
Tagged floods, groundwater rise, sea level rise
3 Comments
Nafeez Ahmed: Venezuela’s collapse is a window into how the Oil Age will unravel
Preface. Ahmed is one of the best writers on the energy crisis and other biophysical calamities. He’s written about why many states are failing now in part due to peak oil, but also drought and other biophysical factors in his … Continue reading
Climate change effects on hydropower in California
Preface. The main impact of climate change will be on hydropower in California, which is the largest source of renewable electric power. Besides natural gas, it is the only dispatchable form of power to balance unreliable, intermittent wind and solar … Continue reading
Hydropower can’t help with the energy crisis
Preface. When fossil fuels are gone, there aren’t many ways to balance the unreliable, intermittent, and often absent for weeks at a time power from wind and solar. Biofuels and burning biomass is one solution, it’s dispatchable and can kick … Continue reading
High-Tech can’t last: limited essential elements with limited lifespans
There are 17 rare earth elements in the periodic table. About nine of those elements go into every iPhone sold… and if China were suddenly to disappear from a map tomorrow, Apple would lose about 90% of those elements. Source: … Continue reading
Black starting the grid after a power outage
Black starts Large blackouts can be quite devastating and it isn’t easy to restart the electric grid again. This is typically done by designated black start units of natural gas, coal, hydro, or nuclear power plants that can restart themselves … Continue reading
Rare Earth – why we may be the only intelligent species in the universe
Preface. I think that Ward & Brownlee’s 2000 book “Rare Earth: why complex life is uncommon in the universe” is one of the most profound books I’ve ever read. What if we are the only intelligent species in the galaxy, … Continue reading