It might feel almost like that but there’s no conspiracy, just power doing what only power can: protecting itself. These people have billions tied up in fossil fuels; oil wells and coal mines but also the products which rely on them. Tesla is only profitable because it sells its carbon credits to carbon-reliant manufacturers.
None of these people would exactly be left in dire straits if we stopped using carbon fuels tomorrow. But they would lose most of their wealth and thus most of their power.
There are undoubtedly small-scale conspiracies, such as various oil companies covering up what they knew about global warming decades ago, or misleading accounts of emissions. But there is no grand (explicit) conspiracy, just tips and tricks and extremely rich people refusing to become merely rich. Even if it means planning escape bunkers and working out how to control the servants they will need to take with them when their money means nothing any more.