Earth is beyond six out of nine planetary boundaries

Question

I have just found out about the articles that scientist have recently published, talking about some planetary boundaries that we have crossed.

I wasn’t really able to get the full hang of it, but I’d really like to understand the concept of these boundaries and what they are, since there are only 3 left and 2 years ago we were crossing the fourth one and now we’re passed the 6th one, and according to news it could potentially cause societal collapse.

So, what are these boundaries and what happens if we cross all 9? How do they affect our society?

Edit:
The article I am on about is found [here](https://www.science.org/doi/10.1126/sciadv.adh2458)

In: 1826

Answer 1

This “planetary boundaries” are thresholds created by scientists to check on “Earth suitability”.

But here’s the problem – nobody tested them. So they might be true, or may be just one more “doomsday prediction”. And because of it – they will have zero effect on our society. Right now they have a little more credibility than predictions of some random prophet, because we never had a chance to verify that Earth-like planet may stop been hospitable to human-like creatures of this boundaries where broken.