June 5 (UPI) -- One of NASA's top ozone depletion and air pollution scientists, credited with enhancing local air pollution measurement tools and dozens of other climate related research advancements, has died at the age of 80. Dr. Stanley Sander was broadly recognized for his work on research on atmospheric chemistry at the Jet Propulsion Laboratory where he started his career in 1971. "Stan made foundational contributions to our understanding of stratospheric ozone depletion , tropospheric