She doesn't recycle plastic. She takes it apart and rebuilds it - molecule by molecule - into something worth more than it started.
A grocery bag is the most boring object in your house. It is also, to most recyclers, garbage with no future - the wrong kind of plastic, too cheap to bother with, destined for a pit or a furnace. Miranda Wang looked at that exact bag and saw a feedstock. Today her company, Novoloop, takes low-value polyethylene - the film, the bags, the packaging nobody wants - and chemically rebuilds it into thermoplastic polyurethane good enough for shoes and car parts. The trick is not collecting the trash. The trick is convincing the molecules to become something better than they were.
Novoloop's whole thesis fits on a luggage tag: most plastic is technically recyclable and practically not. Polyethylene - the most common plastic on Earth - gets downcycled into park benches if it gets recycled at all. Wang's process, called Accelerated Thermal Oxidative Decomposition, or ATOD, does something stranger. It breaks polyethylene's long chains into small, well-behaved chemical building blocks, then reassembles them into a high-performance material. The output, branded XIRC, is a polyester-based TPU elastomer made with up to half post-consumer polyethylene. It is not a worse plastic pretending to be green. It is meant to compete on quality with material made fresh from oil.
That distinction - upcycling, not recycling - is the entire company. "If you want to create processes that are removing waste, taking waste and turning it into usable things, that cannot be done by humans," Wang has said. "That is done by industrial facilities." So she built one. In 2024, Novoloop's demonstration plant in Surat, India ran continuous, around-the-clock operations, turning post-consumer plastic into finished material and proving the chemistry survives contact with the real, messy world. A lab experiment is a hypothesis. A plant that runs at 3 a.m. is a business.
Wang grew up in Vancouver after moving from mainland China as a young child - summers camping, winters skiing, a volunteer recycling club at Magee Secondary School. At 16, a class visit to the Vancouver South Waste Transfer Station did the thing that data never quite manages: it made the abstract physical. She watched mounds of plastic drop into a pit. The volume was the argument.
"I could not believe people around the world are just going about their lives like normal - like this is a perfectly unsolvable or acceptable reality," she has said. "I just thought it was wrong." The reaction was not despair. It was insult. Something fixable was being treated as permanent, and that offended her sense of how the world should work.
She had a co-conspirator: Jeanny Yao, a childhood best friend she'd met through that same recycling club. As high schoolers the two went looking for organisms that could eat plastic and found bacteria in the Fraser River capable of breaking down phthalates, the plasticizers that make plastic flexible. The work won them a spot in the Sanofi BioGENEius competition. Then it won them something far more improbable: an invitation to speak at TED in Long Beach in 2013.
Wang was a first-year university student standing on the stage that had hosted Elon Musk, Bono and the founders of Google. "Being in the company of these titans of the world made us realise everybody starts out where we were: as high-school students," she said. The talk drew a $50,000 investment. The company that became BioCellection, and later Novoloop, was effectively run out of a dorm room.
Wang earned a molecular biology degree from the University of Pennsylvania in 2016, with minors in philosophy and engineering entrepreneurship - a tell, that combination, for someone who wanted to understand both the molecule and the system around it. She co-founded the company in 2015 in Menlo Park, California, and then did the part nobody photographs: a decade of scaling chemistry from beaker to reactor, raising money, rebranding from BioCellection to Novoloop, and grinding from an $11 million Series A toward a total of roughly $42 million.
She has been refreshingly blunt about the cost. The entrepreneurial journey, she has said, is "kind of painful." And the loneliness is structural: "Being an innovator and explorer can be very lonely because you're constantly choosing to be outside your comfort zone and trying to change other people." She offers no slogan to soften it - only a working answer to climate fatalism that doubles as a personal operating system.
*Per company figures, vs conventional virgin-plastic production.
“It's the trying that gives you hope.”- Miranda Wang, on fighting climate despair
Hard-to-recycle polyethylene - films, bags, post-consumer and post-industrial scrap - that mechanical recycling won't touch.
→The ATOD process breaks the long polyethylene chains down into small, clean chemical building blocks.
→Those building blocks are reassembled into TPU - a high-performance, polyester-based elastomer.
→XIRC material goes into shoes, automotive parts and consumer goods - rivaling virgin quality.
Conventional plastic production is carbon-heavy. Novoloop's claim is that rebuilding material from waste can slash that footprint dramatically - the difference between a problem and a feedstock.
Illustrative, based on company-reported emissions reductions.
“I could not believe people around the world are just going about their lives like normal - like this is a perfectly unsolvable or acceptable reality. I just thought it was wrong.
“A lot of people, especially young people, say, 'The future is so hopeless.' That's the depression you must fight every day - because if you don't try something different and take risks, you will feel like it's hopeless.
“Being an innovator and explorer can be very lonely because you're constantly choosing to be outside your comfort zone and trying to change other people.
“Being in the company of these titans of the world made us realise everybody starts out where we were: as high-school students.