RIP: F. Sherwood Rowland

"Isn't it a responsibility of scientists, if you believe that you have found something that can affect the environment, isn't it your responsibility to do something about it, enough so that action actually takes place?" -- F. Sherwood Rowland, the Nobel Prize-winning scientist honored for his work on the ozone layer and climate change, who died last week. Added: Good remembrance from Andy Rifkin in The New York Times.