Artiklen fra Guardian:
Som henviser til tidsskriftet BioScience:
https://academic.oup.com/bioscience/article/70/1/8/5610806?login=false
Guardian: “..The statement is published in the journal BioScience on the 40th anniversary of the first world climate conference, which was held in Geneva in 1979. The statement was a collaboration of dozens of scientists and endorsed by further 11,000 from 153 nations. ..”