<span class="css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0">As this film clip proves, as early as 1958 scientists speculated on the impact upon climate of human activities altering the earth's atmosphere. Do you think the oil companies knew about this risk? Of course <a href="https://www.nature.com/articles/s41558-018-0349-9.epdf?sharing_token=SG9A6TVoWLpeNvawwqWtdNRgN0jAjWel9jnR3ZoTv0P4fU1pUb7k0a5LnOE5ZS6C3jRhNYoeQP8cBCTID1bp9SxsM3r7ZG7JjlVQEaAnkEL_zpLDUH8rRZ1C0GqeI6dBUIZxGXoY5KmDWbiK8gXxoQSAUtSUOXQso-yuh6FEheJGwb2E1Dj2rD5EFE3dUwPIf7vEnww1nQKvZzurFuyMNIILOgF1F4_Hnx7scvZ_TboL88LNUXaAGbW8lHuaxBMOCEDZ-XkOKgapNU-1-3KxYPujMV-FxOuxR0aqUAJI_-96OfgYsoLBZBOqEqcVWsNG&amp;tracking_referrer=www.theguardian.com" target="_blank" rel="noopener">they did</a>. </span><span class="r-18u37iz"><a class="css-4rbku5 css-18t94o4 css-901oao css-16my406 r-1n1174f r-1loqt21 r-poiln3 r-bcqeeo r-qvutc0" dir="ltr" role="link" href="https://twitter.com/hashtag/climatechaos?src=hashtag_click">#climatechaos</a></span>

https://www.youtube.com/watch?v=x1ph_7C1Jq4&amp;t=3000s