oxygen, a process called pyrolysis. This avoids the production of carbon dioxide and locks up the carbon in the biochar. In this form, the carbon can remain in soils for thousands of years, increasing the soil fertility and acting as a carbon sink. This sequestration of the carbon helps to meet targets to reduce emission of carbon dioxide, a cause of climate change.
“You’re probably wondering why growers would choose synthetic and often toxic chemicals if they know they’re harmful to the environment, pollinators and unsafe for workers,” said Radovan. “There are biological approaches that are more eco-friendly, but unfortunately, those can be less effective and more expensive.
Kallestad believes that if there were a standardized price on carbon pollution, biochar and other carbon-negative products, they would quickly expand market share throughout the economy at the expense of products derived from fossil carbon.“There are many proven uses beyond soil amendment for home gardening that are at much bigger scales,” said Kallestad.
“Study on study shows that biochar is more effective dollar for dollar on removing emerging contaminants such as PFAS, but scalability has slowed adoption,” added Kallestad.that showed that biochar made from plant fodder and/or even chicken manure could be used to remove mercury from power plant emissions and clean polluted soil. The report noted that the big question was whether biochar could be produced on a large scale to slow or reverse global warming.
He believes this will solve the scale problem that the biochar industry has faced and will catalyze biochar adoption in key markets by providing a dependable supply at a better price than has been possible before.
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