I really doubt it was a sinkhole-global warming theory. The building just rotted from the inside. I have seen 20 year old beach side commercial buildings demolished because of this. The truth is coming out that the building needed major structural repairs and probably should have been condemned. You can see that the entire ocean side of the building collapsed. We will probably see more of this in the future. High rise condos on the beach is just a bad idea.

“Abundant cracking and spalling of varying degrees was observed in the concrete columns, beams, and walls,” Mr. Morabito wrote. He included photos of cracks in the columns of the parking garage as well as concrete crumbling — a process engineers refer to as “spalling” — that exposed steel reinforcements on the garage deck."





https://www.nytimes.com/2021/06/26/u...stigation.html