1) We are probably screwing up the planet through overpopulation, overconsumption, and pollution. This will impact the quality of life on earth for a lot of people.
It’s called population overshoot. You can look it up in an 8th grade biology book or google search. All animals do it. Exponentially increasing consumption of dwindling resources and the subsequent pollution and degradation of carrying capacity via destruction of life sustaining systems. We have our fancy economic theories though.