Leather is a major contributor to the carbon footprint of fashion brands. But despite the press around prototypes from Adidas and Stella McCartney, there is only one eco-friendly vegan “leather” that you can buy straight off the internet: AirCarbon.
Herrema said the idea that would eventually lead to AirCarbon came to him while he was at Princeton in the early 2000s. He was studying politics, but some digestive issues drove him to start researching diets and the food system. He found out that a cow can burpof methane, an extremely potent greenhouse gas, into the atmosphere every day. He imagined the market value of that methane—more than $20,000 per year from a large farm—evaporating into the air, and saw a business opportunity.
Yep, PHB is a type of plastic. But a biodegradable and completely non-toxic plastic that’s made from organisms instead of fossil fuels. The Huntington Beach, California factory, which opened in September 2020, has giant stainless steel tanks filled with salty water and a mix of microorganisms called methanotrophs. Methane gas is blended into the water, and the organisms eat it to produce PHB, which is then harvested, purified, and refined into a white powder: AirCarbon. “We're mimicking a process that happens in nature every day,” Herrema says.
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Last Seven Years Were The Hottest On Record, EU Climate Data ShowConcentrations of carbon dioxide and methane continued to rise in 2021 “without signs of slowing down.”
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