Wood waste at its suburban facility currently either becomes compost or is burned for energy. Waste Management said in a prepared statement that it seeks to reduce its carbon emissions by 42 percent by 2032 and sees biochar as a potential solution. The company was recently named a finalist for an incubator program by Minnesota clean energy accelerator Grid Catalyst, and is partnering with trash and recycling giant Waste Management to deploy its first reactor at a Twin Cities waste facility. “We can take 1 trillion tons of CO2 that we’ve dug up and put into the air, suck it into the trees and the plants, take their waste product, bury it underground, and store it indefinitely.” “If we harvest all the biomass waste out there and convert it to something more stable, like a char, then bury it underground, we’re reversing the coal mining process,” Jones says. Jones believes biochar should be buried to remove any chance of carbon release. Those technologies also demand either centralized plants or investments of hundreds of millions of dollars per site.Ĭarba’s answer: Let trees and plants do the work of pulling carbon from the atmosphere, and then lock that biomass into a stable form before it can decay. The company promises to consume a fraction of the energy of other technologies, such as direct air capture methods. Carba’s technology offers a way to lock that into a solid form instead. Trees and plants are the world’s biggest carbon sink. Through photosynthesis, they store carbon dioxide throughout their lives, but after they die, they decay and release that carbon back into the atmosphere. “There’s a huge negative emissions problem and nobody has the technology to scale without using a ton of energy or capital,” says Jones, who is also Carba’s CEO. Intergovernmental Panel on Climate Change report says will be necessary for preventing the most devastating effects of climate change. The company’s backers believe it could prove to be an inexpensive and energy-efficient method to remove carbon dioxide from the atmosphere-something the latest U.N.
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