What we have drifted into is a tech supported civilization that is covering the planet from corner to corner with myriad of footprints (emissions, particulate and chemical pollution of all types, habitat alteration or destruction etc).
The story of ozon layer depletion was an early warning. Greenhouses another dimension. Microplastics and nitrates another etc etc, with no end in sight.
Imagine homo sapiens communities spread around in the billions and a steady stream of polluting stuff emanating from them, not temporarily but continuously and forever.
This is the challenge we are facing and its monumental. How to take that out-of-control, scant regard for externalities tech enabled economic "growth" mindset and turn it around.
Bold ideas are welcome. Burrying heads in the sand not an option.