Getting climate, energy & environment news right.

New Google geothermal electricity project could be a milestone for clean energy
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New Google geothermal electricity project could be a milestone for clean energy

"Fervo pumps cold water down an injection well, then over hot rock underground to another well, the production well. The path between is created by fracking, or fracturing the rock. The water heats up to nearly 400 degrees Fahrenheit (200 degrees Celsius) before returning to the surface. Once there, it transfers its heat to another liquid with a low boiling point, creating steam. The pressure of steam expanding spins a turbine to produce electricity like in a coal or natural gas-fired plant. The geothermal water, now cooled, is put back down the injection well to start the cycle again, in a closed-loop system."

The Newest Airline Climate Solution? Burying Sawdust
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The Newest Airline Climate Solution? Burying Sawdust

"Graphyte’s first project in Pine Bluff, Ark., collects waste from two timber mills and a rice-milling operation. The company aims to start manufacturing its biomass bricks in January and burying them in July. By then, it hopes to be making roughly 140 pallets of blocks a day, enough to store 50,000 metric tons of carbon annually."

Climate startup OCOchem, which recycles CO2 into fuels and chemicals, lands $5M
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Climate startup OCOchem, which recycles CO2 into fuels and chemicals, lands $5M

"The approach has two climate benefits, said CEO and co-founder Todd Brix. First, it uses CO2 that’s captured as an industrial waste from facilities such as biogas and bioenthanol producers or it’s pulled from the atmosphere using a direct air capture device. Second, it generates formic acid and other formate chemicals that can replace fossil fuels as a feedstock for fuels and other products."

Bill Gates-Backed Startup to Use Old Wood to Remove Carbon From the Air
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Bill Gates-Backed Startup to Use Old Wood to Remove Carbon From the Air

"Graphyte is in the process of building its first plant in Pine Bluff, Arkansas, near local timber and rice mills that could serve as biomass sources, according to Rogers. It’s also in the process of signing customer offtake agreements, or a contractual commitment to buy carbon removal services at a predetermined price upon delivery. The first carbon blocks are expected to be produced by January 2024. The startup projects the project will have the capacity to remove 5,000 tons of CO2 per year by the end of 2023 and 50,000 by July of 2024."

How Unilever uses AI to cut petrochemicals out of laundry soap
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How Unilever uses AI to cut petrochemicals out of laundry soap

"Arzeda, which raised a $33 million Series B round of venture funding in March 2022, doesn’t just help companies with discovery. It’s also a co-development partner. It has already worked with Unilever to design, engineer and test the enzymes in real-world testing quantities. The next step will be to scale production of the enzymes and help commercialize them. 'We are getting better and better at the design with every undertaking,' said Arzeda CEO Alexandre Zanghellini."

A Tiny Supercritical Carbon Dioxide Turbine Can Power 10,000 Homes
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A Tiny Supercritical Carbon Dioxide Turbine Can Power 10,000 Homes

"The Energy Department anticipates that new supercritical carbon dioxide turbines can shave energy consumption at power plants by 10%, but that’s just for starters. They have a much smaller footprint than their steam-driven cousins, resulting in manufacturing efficiencies all along the supply chain."

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