On second thought, i think this is intentional. If scientists interpolate from well-chosen substances onto all Pm2.5, it should be provable that earths atomosph

On second thought, i think this is intentional. If scientists interpolate from well-chosen substances onto all Pm2.5, it should be provable that earths atomosphere is toxic beyond limits and uninhabitable. "We destroyed earth" sells well and would justify further research funding. </tinfoil-hat>