Exxon's scientists, in 1982, predicted the Earth's current CO₂ level with fair accuracy, and anticipated some (but not all) of the disastrous effects that are already starting. The author compares the executives of ExxonMobil to fictional characters that destroyed planets.

The US Constitution prohibits ex-post-facto laws, correctly so. There is no way to retroactively criminalize what those executives did.

However, it may be possible for a wealth tax to impose a higher tax rate on wealth derived from fossil fuels.