Infographic Incidence of Oil Spills Worldwide 1970 – 2015 Share Since the 1970s the number of oil spills 7 tonnes or more has decreased from a high of more than 120. Published March 22, 2018 | Last modified on June 20, 2024 You may also be interested in Infographic Response Sequence Article Research Spotlight: Dr. Jackie Dawson Infographic Oil Transported as Cargo in Canadian Waters