Atacama is an MIT spinout developing sustainable polymers that can be made cost-effectively from diverse, local raw materials. Our  approach has the potential to replace a good portion of single-use plastic packaging with lower costs and zero CO2 emissions. A recycled paper-based flexible film called Woodpack (WPk) is Atacama’s flagship product, with validated applications across markets. Our AI-driven system is at the core of WPk's innovation. It refines its formulations in real-time to ensure consistent quality, lower production costs, and a minimal carbon footprint—just 11% of the energy of traditional plastics. By leveraging our AI model, Atacama is able to overcome biobased feedstock variability, the biggest challenge for a successful commercialization at scale. As a result, WPk isn't just 100% bio-based; it utilizes a low-temperature polymerization process, distinct from the energy-intensive chemical synthesis used in other "compostable plastics" like PLA. This approach makes WPk cost-competitive unlike expensive alternatives like PLA or PBS. WPk preserves natural home-compostability and paper recyclability. It can be coated with aluminum plastic free and heat sealed with standard packaging lines. Atacama brings the environmental benefits of paper with the high-performance of plastics, through a platform that brings material science to the forefront of technological advancements of the world.