Restoring what system - nature is not some harmonious place where everything just works and people came and ruined it - there were plenty of extinction events p

Restoring what system - nature is not some harmonious place where everything just works and people came and ruined it - there were plenty of extinction events prior to humans, evolution can lead to dead ends and get stuck at local minima. It doesn't optimize for a lot and collects garbage allong the way (eg. eye optic nerve blind spot) Man made climate change is showing us how vulnerable we are to changes in the Earth ecosystem - instead of putting our heads in the sand and hoping everything goes back to the way it was while we pray to the weather gods we could actually figure out ways to engineer our environment and become more resilient to such changes. If we are so sensitive to climate change what would happen in another Chicxulub impactor scenario - another global extinction ? Not to mention much more probable global disasters like disease outbreaks.