The Greenhouse Effect Shell internal report (1988) • A Shell study from 1986, published in a report called The Greenhouse Effect in 1988, outlined the company’s awareness of the science of climate change • This report acknowledged the physical consequences, including rising sea levels, ocean acidification, changing agricultural patterns, and climatic change • The report also acknowledged potential social, economic, and political consequences of these environmental impacts • Moreover, this report contains a calculation by Shell of its own contribution to historical carbon dioxide emissions – noting that it has contributed approximately 4% of the total