Interview with Paul Crutzen by Astrid Gräslund at the meeting of Nobel Laureates in Lindau, Germany, 2000.

Paul Crutzen talks about family background, early education and interest in natural science; his work in the Institute of Meteorology in Stockholm (4:54); his discovery (6:46); the ozone layer (15:34); the Greenhouse Effect (19:03); ozone holes (23:33); and the consequences of a 'Nuclear winter' (27:02).