There is no number for “we don’t have a source of soy anymore” or “Florida coastlines have moved 50 miles inland” or “the Ogallala is empty”. We could guess, and we would be guessing some really really big numbers that don’t sound very eatable.
The big easy ones are the weather disasters. Katrina did 200b in damage (inflation adjusted). If we jump up to a disaster like that yearly, 1000b every 5 years is…. A serious problem for a 30,000B economy. And that’s JUST hurricanes.