"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."

"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."

"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."

"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."