- Big Oil companies could have helped stop climate change not 30 but 63 years ago: Instead, they engaged in climate denial. So now, extreme weather disasters from a 63-year-old denial of climate change has cost the world an estimated $220 billion in 2021, up 24% on 2020 https://adetokunbo.substack.com/p/big-oil-companies-could-have-helped?sd=pf 50 comments environment