We need to stop destroying earth! What are some big ways that we can get involved in to help?

Question

We need to stop hurting Earth! Otherwise...

Timeline

2050 there will be 9.7 billion people and crops will die and people will be hungry. The koala will go extinct, and people will be forced to fight or flee. A quarter of the world's plant and animal species will face extinction, and soil erosions will happen.

2070 there will be 9.4 billion people and rhinos, polar bears, orangutans, lemurs,cheetahs, gorillas and turtles will be extinct if we don't help.

Answer 1

Pardon my Dark Humor, Looks like we need to kill your species.

Well first of we need to find the source of the problem . why will this happen? Until you answer that you can't stop hurting your earth. Is it global warming (which is not real,just the heating and cooling cycles of the earth.)  Is it Pollution? (which is very real).  Or will it be industrialisation.   I,m only Cycle 6 of my learning.