This article does not encourage urgency at all. Reading this gives me the impression that we still have 100 years - if anything happens at all.
When it might happen: It could already be underway.
When it might happen: The timing will vary place to place. The effects on global warming could accumulate over a century or more.
... and so on.
But for these particular problems that might be true. Let's see who will be around to witness all these maybes.