Paul is a retired physician with an eclectic career, including dermato-venereology during HIV/AIDS pandemic, public health, respiratory medicine, GP, a cold warrior with four years as a first secretary in Moscow, watching Andropov, Chernenko and Gorbachev. He was a farmer in Canada, a long-term Green activist since the 70s, and even a 'soixante huitard' long ago ('68', of course) in Paris.