I fear that you are correct but understand that those who argue about the cause are the real threat to doing anything at all.
We need to understand that so many of the needed remedial solutions will take generations to complete. Infrastructure is slow to construct. If new pipelines or dams or levees or sea walls or detention ponds or roads or power lines or plants are needed we can expect each to take about a quarter century from proposal to completion.
We need to be asking where we can relocate the millions of people most effective, about how to rebuild NYC and all other major metropolitan areas so the subways are no longer subject to flooding, about relocating all power distribution systems so that they are underground (that one might be possible in a half century if we started today).
We need to understand that the financial costs involved will fall mostly on the Industrialized Nations.
But nothing will even get considered until we can get past those people who still want to argue about "Whose fault is it?"
Anyone so limited that they can only spell a word one way is severely handicapped!