CO₂-based polymers, also known as CO₂-derived polymers, represent a significant advancement in polymer science. These polymers are synthesized by polymerizing CO₂derived monomers, typically carbonates and urethanes, offering a sustainable alternative to petroleum-based plastics. The incorporation of CO₂ into polymer backbones serves as both a means of sequestering carbon and creating biodegradable materials, which help mitigate environmental plastic pollution.