American environmental journalist (1977–)
As perhaps the chief public face of American science during this period, Carl Sagan wasn’t merely a popularizer but a fierce advocate for the proper use of science in the real world. During the 1980s, President Ronald Reagan necessarily became his chief foe, for Reagan brought anti-science into the American political mainstream as never before.
In 1957, he appointed the first official presidential science advisor, MIT president James Killian, and launched the distinguished President’s Science Advisory Committee. As Eisenhower would later put it, “this bunch of scientists was one of the few groups that I encountered in Washington who seemed to be there to help the country and not to help themselves.”