There can be no mistake: as early as 1981, big oil company Shell was aware of the causes and dangers of climate change.
These documents show Shell walking backwards. In the 1980s it was acknowledging anthropogenic global warming. Then, as the scientific consensus became more and more clear, it started introducing doubt and giving weight to a “significant minority” of “alternative viewpoints” as the full implications for the company's business model became clear.
By trawling through a tranche of documents first uncovered by Jelmer Mommers of De Correspondent, published on Climate Files, DeSmog UK can chart 30 years of the company’s understanding of climate science.