Forget solidarity: the global south will not survive this century without climate justice. You in the west are talking about paper straws, we in the global south are talking about reparations.
A clear example of flooding in this scale has already happened in California, of all places: The Great Flood of 1862:
- Heavy rains over the preceding months.
- Record amount of rain in a short period of time.
- Knowledge from Native people was ignored. Their lore had passed down knowledge of such events.
- Sacramento was underwater for three entire months after the storms causing the flooding passed, forcing a move of the state capital from Sacramento to San Francisco.
This is just one instance. The lack of infrastructure maintenance in the US will prove very, very costly. Just look at New Orleans.
The US should be bracing for a very watery future.