The tobacco companies were the first ones to really succeed at population-scale misinformation through manipulation & discrediting of scientific results. Then the oil companies saw climate change coming and had decades to hone their own operation with everything they learned from that, and spent that time taking control of international policymaking with well-placed corruption to solidify control against even a strongly contradictory academic scientific consensus
You're not wrong. If anything, you understate the issue and missed coal in the chain of denial. Try a search on "koch brothers climate denial" if you want to kill a few hours
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