A WHO study anticipates a 77% increase in cancer cases globally by 2050. Among the key factors in the increase in incidence incriminated by the study is air pollution.

Fine particles, then a cellular bug, are the main source of these particles, says Dr Emmanuel Ricard. There is now a transfer of pollution towards a "South" of the world, says Ricard, because it is "dumping ground" for oil tankers and refineries. The “South’s” air quality is not the same for everyone, because we do not all breathe the same air.