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Two-axis graph, showing % of net energy out as a function of EROI. EROI starting at 50 and declining precipitously below EROI of about 5
Paid-members only
Science

EROI and The Net Energy Cliff

13 Jul 2025 9 min read
Concept Source: Princeton Public Library. “Misinformation, Disinformation & Malinformation: A Guide.”
Climate Change

Misinformation, Disinformation, Malinformation, and Distrust of Climate Science

Misinformation, disinformation and malinformation are forms of rampant pollution of the information ecosystem. This pollution is toxic, promoting distrust in science, and holding back efforts to combat climate change.
08 Jul 2025 10 min read
Insulation and claddidng being added to a large cylinrical steel tank that is under construction
Greenhouse Gases

Sand Batteries

A company in Finland has brought on line a high-temperature heat storage installation, using crushed local soapstone, to store off-peak and renewable energy for use during peak demand periods
08 Jul 2025 2 min read
Improvements, Still
Hope

Improvements, Still

A new 3D printable substrate improves solar distillation by an order.
04 Jul 2025 4 min read
Schematic of new thermodiffusive desalination process
water

New Desalination Technology

Australian researchers have developed a new desalination process that uses less energy than phase change and requires less maintenance than reverse osmosis.
03 Jul 2025 2 min read
Tiny green frog, doing her best to match a green leaf.
Climate Change

How Not To Be a Boiled Frog

Blink.
01 Jul 2025 8 min read
A giant clump of electrical transmission hardware. Looks a little like Dr. Frankenstein's setup, TBH.
Greenhouse Gases

Efficiency Gains via Electrification, or Why We Should Electrify Everything We Can

Decarbonizing the economy by electrifying everything in it will mean we need less total energy.
24 Jun 2025 6 min read
Lost, So Small Amid That Dark
Hope

Lost, So Small Amid That Dark

Attenborough's long-beaked echidna re-emerges.
21 Jun 2025 2 min read
A pair of two-story tall rectangular brown high temperature heat storage containers next to a boiler house, whose chimney contains a boiler that the storage will replace
Hope

Storing Energy from Renewables and/or Waste Heat for Industrial Processes

System to store renewable energy as high-temperature heat for industrial processes
17 Jun 2025 1 min read
Figure 1: Global coal exporters.

The World Coal Export Market

It's a dirty business. But somebody always decides to do it.
17 Jun 2025 7 min read
Climate Train

Climate Train

When traveling what is the "best" climate change choice?
11 Jun 2025 5 min read
An iridescent Anna's hummingbird.
Birds

Feeders lead hummingbirds by the beak

Backyard hummingbird feeders present an environmental shift and an opportunity for species change through natural selection.
03 Jun 2025 2 min read
Black and white picture of very large cylindrical blast furnace in Pittsburgh Steel Company Monessen works
Materials

Steel

Steel is one of the pillars of modern civilization but its production emits far more CO2 than the aviation industry. Material substitutes for steel simply don’t exist on the kind of scale needed. Reducing the carbon impact of steel production faces major technical and economic challenges.
03 Jun 2025 8 min read
Red truck descending a long hill into a dry valley in the Atacama Desert, low barren mountains in the background
Hope

Extracting Water from Desert Air with Bio-inspired Materials

Getting water from desert air, like a frog
01 Jun 2025 1 min read
The Day Bores Became Exciting

The Day Bores Became Exciting

Oilfield down-hole skills may lead to viable large-scale closed-loop geothermal. It's a trend to watch.
01 Jun 2025 3 min read
Australia and China are tied for third among nations with major coal deposits. They each have 13% of the world's reserves.
Members only

Australia's bad coal habit

27 May 2025 4 min read
Sunnay day photo of narrow irrigation canal covered with solar photovoltaic panels, alongside orchards
Solar

Covering Canals with Solar PV

A pilot project to reduce evaporation and generate renewable electricity by covering irrigation canals with solar PV has completed its first phase.
24 May 2025 2 min read
Can Ticks Invade Canada Faster?

Can Ticks Invade Canada Faster?

Some North American tick species seem to be expanding northward more quickly than their physiological cold tolerance allows. A new paper proposes an explanation.
20 May 2025 4 min read
Seismogram of 1906 San Francisco earthquake, recorded in Germany, showing arrival of both compressional P waves and S shear waves, as vertical squiggles on a horizontal time axis
How-to

Resilience Borne of Disaster

After experiencing disasters, many places around the world are rebuilding to be more resilient in future. We can learn from the experience of others how to assess our local hazards and risks and upgrade our infrastructure, so as to lessen the damage from future events.
14 May 2025 9 min read
A graph of carbon and non-carbon energy sources that slowly converges on 50 percent.
Hope

A Month Where Fossil Fuels Fell Behind

"Non-carbon" sources supplied more than half of US electrical power in March
12 May 2025 2 min read
Trees
Climate Change

Trees

Trees are beautiful and maybe more. Updated: July 2, 2025
06 May 2025 6 min read
Picture of a cluster of magnolia leaves in sunlight, with light brown branches behind
Hope

Printed Circuit Boards Made from Leaves and Pill Coating

Researchers have invented printed circuit boards made from leaves of magnolia trees.
01 May 2025 2 min read
Close shot of a translucent mushroom from a low angle that shows its gills.
Food

Mycelial Proteins: A Little Like Mae West

In a world where the environmental footprint of foods is important, mycelial proteins gain market acceptance.
01 May 2025 3 min read
Modern two-masted commercial sailing ship in New York, with Manhattan skyline in background
Wind

The Return of Commercial Cargo Sailing Ships

Modern, purpose-built commercial cargo sailing ships are now sailing trans-Atlantic routes
01 May 2025 2 min read
Kitchen counter with open bag of coffee beans, on its side with beans spilling out, next to manual coffee grinder and French press. Behind are ceramic canisters and teapots.
Climate Change

Coffee - Climate Change Gets Personal

Coffee – many of us can’t live without our daily fix, but what is the environmental footprint of our daily cup(s), and what impact does a warming planet have on the future of coffee production?
30 Apr 2025 8 min read
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