The 'some we may be able to reverse' - I'm thinking of things like a lake bursting it's banks - once that happens it may then turn into a river and all the bene

The 'some we may be able to reverse' - I'm thinking of things like a lake bursting it's banks - once that happens it may then turn into a river and all the benefit of the lake may be lost - though it may (with will and funding) be reversible. But yes, may of the tipping points we face will be irreversible. As once the lake banks burst once, they are very likely to again and again.