E-Mail IMAGE: Anderson earned the 2021 Dreyfus Prize in the Chemical Sciences for his ground-breaking measurements of the free radicals that drive atmospheric chemistry and for his foundational work to form global... view more Credit: Harvard University Today, the Camille and Henry Dreyfus Foundation announced that James (Jim) G. Anderson is the recipient of the organization's highest honor and only international prize, the 2021 Dreyfus Prize in the Chemical Sciences. This year, the $250,000 biennial prize was awarded for work in environmental chemistry. Anderson, the Philip S. Weld Professor of Atmospheric Chemistry, was chosen for his ground-breaking measurements of the free radicals that drive atmospheric chemistry and for his foundational work to form global agreements to protect the vulnerable stratospheric ozone layer.