The 'planet' doesn't need saving - the planet is fine. No matter the damage we do to the planet through our predatory ecosystem exploitation, it will recover in

The 'planet' doesn't need saving - the planet is fine. No matter the damage we do to the planet through our predatory ecosystem exploitation, it will recover in a few million years. The most difficult step - the one that took almost 2.5 to 3 billion years, was eucaryotes and multicellular life. It's pretty unlikely we can do enough damage to undo that, even if we nuke the whole planet. The planet still has some 3 billion years until the sun turns red and that's plenty of time for another species to have a go at sentience. It is human civilization that needs saving.