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 Article Indigenous Employment in the Ocean Sector Microsite Air Pollution Infographic Air Pollutant Emissions from All Sources in Canada