This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Is The Ozone Going We Still Don’t Know
Washington scientists debate the impact of the aerosol propellant ban on the ozone layer. Fluorocarbons declined sharply after 1977 79, but remaining uses in refrigerants dry cleaning and cushions mute measurements of any clear protective effect.
MENTIONED IN THIS ARTICLE
Alken Standard
Aiken
S.C
Washington
Earth
Academy
Edward A. Klein
Chemical Control Division
Environmental Protection Agency
Office of Toxic Substances
Lester Machta
National Oceanic and Atmospheric Administration
Air Resources Laboratories
Machta
Chemical Manufacturers Association
Klein
James Angell
NOAA
Donald Heath
The
National Aeronautics and Space Administra