Calcined Clays Are Not A Cement Decarbonization Slam Dunk

Credit to Author: Michael Barnard| Date: Tue, 28 May 2024 21:25:06 +0000

Cement is the gray glue that holds our modern cities and infrastructure together. We use about 4.1 billion tons of it a year, and every ton has a carbon debt of about a ton of carbon dioxide. That’s about 10% of our global emissions, so it’s a big problem. From … [continued]

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Levers To Reduce Cement’s Use, Along With China’s Slowing Demand, Are A Good News Story

Credit to Author: Michael Barnard| Date: Mon, 27 May 2024 16:10:04 +0000

Cement has reared its gray and flaking head into my attention again recently. The global use of about 4.1 billion tons of the stuff to make perhaps 40 billion tons of concrete is responsible for around 10% of all carbon dioxide emissions globally. It’s one of the few industrial products … [continued]

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Less Carbon, More Chill Novel Refrigeration Approach Uses PCMs To Freeze, Cool Perishables

Credit to Author: US Department of Energy| Date: Mon, 27 May 2024 03:59:26 +0000

A technology developed by Oak Ridge National Laboratory works to keep food refrigerated with phase change materials, or PCMs, while reducing carbon emissions by 30%. More than 100 million household refrigerators in operation across the United States consume up to 2 kilowatts of electricity daily. These refrigerators contribute to energy … [continued]

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Publishing On Cement Decarbonization Brings Challenges, Corrections And More Approaches

Credit to Author: Michael Barnard| Date: Sun, 26 May 2024 02:25:59 +0000

A few days ago I went deep on cement again, using an assessment of the processes of American clean cement startups Sublime Systems and Brimstone to define the scope and magnitude of the problem, the chemistry and energy requirements of cement, why fixing it is critically important, and incidentally evaluate … [continued]

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Brimstone’s Cement Process Tries To Dodge Carbon Dioxide Through Costlier Rocks & Higher Heat

Credit to Author: Michael Barnard| Date: Fri, 24 May 2024 11:00:31 +0000

Several years ago I concluded that Cement’s CO2 Emissions Are Solved Technically, But Not Economically. Since then I’ve had numerous conversations with deep experts on the subject that made me realize that it wasn’t just cost, but regulations that held alternatives back. I’m digging through some of the current crop … [continued]

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Electrochemistry Might Help Solve Cement’s Carbon Problem

Credit to Author: Michael Barnard| Date: Thu, 23 May 2024 22:34:41 +0000

One thread I’m pulling on across industrial solutions is the ability of electrochemical processes powered by green electricity to replace industrial processes powered by fossil fuels. Today someone handed me the end of a thread leading to Sublime Systems, a Massachusetts, USA, firm that’s using electrochemistry to make low-carbon cement. … [continued]

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Sublime Systems Is Leading The Transition To Low Carbon Cement In Boston

Credit to Author: Steve Hanley| Date: Thu, 16 May 2024 13:00:01 +0000

The first commercial use of concrete made with low carbon cement from Sublime Systems has happened in Boston.

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ATCO’s Proposed Edmonton Hydrogen Subdivision Would Pay 4-10 Times Current Cost For Heat

Credit to Author: Michael Barnard| Date: Tue, 14 May 2024 16:35:23 +0000

Every time I publish an article or post something on LinkedIn pointing out the economic folly and inevitable cul-de-sac of hydrogen-for-energy, commenters drag out new examples of bad hydrogen schemes, whether as ideas they think are proving my point or examples that disprove my thesis. After publishing on Canada’s $25 … [continued]

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Americans Burn 50% Less Fossil Fuel in Their Homes Than They Did 50 Years Ago

Credit to Author: Joe Wachunas| Date: Fri, 10 May 2024 19:10:03 +0000

Americans burn much less fossil fuel in their homes on average and use much more electricity compared to half a century ago. This good news means that even though the “Electrify Everything” movement became a leading decarbonization strategy a decade or so ago, American homes had actually been steadily electrifying … [continued]

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Green Builder Sustainability Symposium Presentation — Slides & Transcript

Credit to Author: Michael Barnard| Date: Mon, 06 May 2024 18:48:44 +0000

In mid-2023, Green Builder Media’s CEO Sara Gutterman reached out to me to see if I were interested in presenting at their annual Sustainability Symposium. It’s been running annually for close to a decade, and with COVID it transitioned to virtual and won’t be going back. That event occurred a … [continued]

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