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Blocky illustraion of plastic bag with a red NO circle imposed over it, with text "say no to single-use plastic bags" to the left.
Hope

Do Plastic Bag Bans Work?

Mostly they do, with caveats.
24 Jul 2025 1 min read
Very large cube-shaped building, about 100 metres per side, under construction, with wind turbines on flat land  in the background
Hope

Gravity Energy Storage

Using the whole planet to store energy!
22 Jul 2025 2 min read
Cook Islands: A Cautionary Tale

Cook Islands: A Cautionary Tale

Canaries and coal mines and coconuts!
22 Jul 2025 7 min read
A cluttered hot-glass workbench in Murano, Italy. A glass artist is making ornamental "murrine" out of pulled glass cane.
Hope

Hot Glass, but a Cooler Climate

Glass blowing, an ancient art that has always had a dreadful carbon footprint, finds ways to improve.
18 Jul 2025 2 min read
Aerial photo of parking lot-sized array of white battery modules adjacent to a photovoltaic array and large building
Solar

AI Data Centre Powered by Renewables and Used BEV Batteries

Synergistic pairing of renewable energy with used BEV batteries to power AI data centre standalone microgrid.
15 Jul 2025 2 min read
Solar panels and wind turbines on a grassy field.

Energy Grid and Beyond

How did your get your coffee today?
15 Jul 2025 7 min read
Solar Takes Over
Solar

Solar Takes Over

Fossil fuels are so last decade
14 Jul 2025 2 min read
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
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