They knew about the dangers of climate change since the 1970s and pumped millions into climate change denial think tanks and did everything they could to prolong their dirty business a bit longer, while externalizing all the cost and hauling them upon the public they were actively misleading.

It'd be a different thing if they hadn't tried to hide the findings of their own scientists and hadn't spent that much resources to discredit people actually trying to get us to fix stuff.

They're guilty as hell. Morally, probably even legally.