We find ourselves, one way or another, in the midst of a large-scale experiment to change the chemical construction of the stratosphere, even though we have no clear idea of what the biological or meteorological consequences may be. — Frank Sherwood Rowland
What's the use of having developed a science well enough to make predictions if, in the end, all we're willing to do is stand around and wait for them to come true? — F. Sherwood Rowland