Earth without humans would survive on a very harsh conditions, very well said sir, I agree with you, it's such a pity for our nature that it was abused for being greed of humanity.

I was thinking before that what would happen if all humans will disappear? And as time goes by, my questions got answered, the earth will heal itself, all the man-made structures will collapse and after hundreds of years, the earth will go back to what it was before. It's such a nice thing to see but it's far from reality unless there was a catastrophe that will wipe out everything.