Before the planet was polluted

I made a Google doc it was about before the planet was polluted
In the past we had lots of animals and plants and we got lots of forests. But now there pollution we don’t have that much forests now  because we have polluted  our planet. If we don’t stop polluting our planet  we won’t have a single thing on our planet and if people don't stop polluting we will have no more animals and plants and if we cut trees down we will not have any oxygen to breathe. It was much colder because there was less global warming and since there's global warming it is hotter. Plants were
also less harmed especially trees and before there was pollution there
was more oxygen as well. Right now we really  want to try and make our
environment like it was in the past. Pollution is made by food companies because people have to eat food to survive and even drinks but if we recycle we will not have pollution any more. The planet is destroyed by pollution and cars because in China they have to wear a mask because there pollution in the sky.

I like doing this piece of writing and it's fun to post it.
What would think if the pollution doesn't stop ?