Microbial PHA biopolymers convert plant‑derived CO₂ into high‑performance amorphous and semi‑crystalline plastics that are biobased, home‑ and industrial‑compostable, and biodegradable in marine and soil environments. Suited for rigid and flexible packaging, beauty/cosmetic containers, food serviceware, paper coatings, and nonwovens, offering a pathway to reduce persistent microplastics.