Monthly Archives: June 2019

Humans destroyed 10% of wilderness in just 25 years

Posted on June 29, 2019 by

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 →

Posted in Biodiversity Loss, Deforestation | Tagged , , | 2 Comments

Decommissioning a nuclear reactor

Posted on June 26, 2019 by

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 , | Comments Off on Decommissioning a nuclear reactor

We evolved to exercise and need high levels of physical activity to be healthy

Posted on June 23, 2019 by

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 →

Posted in Health, Muscle Power | Tagged | 2 Comments

Groundwater rise. Yet another climate change threat.

Posted on June 20, 2019 by

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 , , | 3 Comments

Nafeez Ahmed: Venezuela’s collapse is a window into how the Oil Age will unravel

Posted on June 17, 2019 by

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 →

Posted in Central & South America, Oil (Tar) Sands, Peak Oil | Tagged , | 2 Comments

Climate change effects on hydropower in California

Posted on June 14, 2019 by

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 →

Posted in Energy, Hydropower | Tagged , , | 2 Comments

Hydropower can’t help with the energy crisis

Posted on June 11, 2019 by

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 →

Posted in Alternative Energy, Energy, Hydropower | Tagged , , | 1 Comment

High-Tech can’t last: limited essential elements with limited lifespans

Posted on June 8, 2019 by

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 →

Posted in Alternative Energy, Cascading Failure, Elements: Critical, Elements: Rare Earth, Microchips and computers, Supply Chains | Tagged , , , , , | 3 Comments

Black starting the grid after a power outage

Posted on June 5, 2019 by

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 →

Posted in Grid instability | Tagged , , , | 6 Comments

Rare Earth – why we may be the only intelligent species in the universe

Posted on June 2, 2019 by

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 →

Posted in Evolution, Human Nature, Life Before Oil | Tagged | 11 Comments