Express News: During the 1980s, the United States and the world faced an urgent environmental challenge. Scientists warned strongly that chlorofluorocarbons, known as CFCs, were destroying the ozone layer.
If not stopped, this would wreak havoc on public health -- increasing cancer rates, cataracts and worse -- and on ecosystems that are essential for agriculture and marine life.
The scientists made it clear: Humans caused this problem and humans must fix it.
Under then-President Ronald Reagan's leadership,...