in the grand scheme of things, humans and what we have produced is nothing. Given enough time everything will be decomposed. On in the words of a great comedian: "the planet is fine, people are f'ed"

My worry is that we will transform Earth into a landfill and in desperation we will search (and find) another planet to trash. Humans are very very creative when it comes to survival. Only a fraction of people alive will make it to the new planet. Rinse and repeat.