So what are the threats towards the Great Wall of China?

Hi, it is the pollution of garbage from the tourists.

thank you!
are their anymore threats?
and how bad is the pollution?

Yes, the pollution of garbage is terrible. I read a news that only at Badaling Section, there are around 130 cleaners who have to work for whole days to clean the rubbish. Besides, I heard some Chinese people exploit mine and other resources near the walls to destroy some sections. It is said that there are several sections of walls disappearing year by year.

thank you!
so is that it I thought there would be more threats against a cultural site?

Yeah, sort of.

Depends on the time period, a few hundred years ago Mongolians.