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Hurricane Katrina vs. Hurricane Helene (lemmy.world)

submitted 2 months ago by FlyingSquid@lemmy.world to c/science@lemmy.world

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[-] FlyingSquid@lemmy.world 29 points 2 months ago

Helene is more deadly than Katrina if you don't count the deaths after the boat broke the levee that was well beyond its lifespan in New Orleans, which you shouldn't since that was a 100% fixable issue that was not taken care of.

[-] ShittyBeatlesFCPres@lemmy.world 66 points 2 months ago

We always say Katrina was a man-made disaster. I worry with climate change, that other places will be testing their infrastructure. Katrina should have been the canary in the coal mine and a lot of people just said, “Don’t live below sea level.” Old river damns can break just as easily as neglected levees.

[-] FlyingSquid@lemmy.world 37 points 2 months ago

It was definitely a man-made disaster when it came to New Orleans. I made this analogy to someone else: if lightning strikes a skyscraper and the skyscraper burns down and kills everyone inside due to a lack of a sprinkler system, is that really death by a natural cause? I would say it's death by gross incompetence.

[-] Maggoty@lemmy.world 4 points 2 months ago

But we couldn't have the poor corporation taking the responsibility for that. They'd never get their insurance pay out! And after all that work disabling the sprinkler system and installing extra metal antennae in the roof...

[-] Soggy@lemmy.world 3 points 2 months ago

We don't respect rivers enough. I would never live in a floodplain.

[-] WoodScientist@lemmy.world 8 points 2 months ago

The real problem with "never live on a floodplain" is that you can't know where the floodplains are. The flood maps are all based on historical rainfall data, and that data is now obsolete. Even worse, it won't stabilize in our lifetimes. So we can't just observe the next ten years of rainfall and plan around that. No, things are changing, and they will continue to change. You might think you don't live on a 500 year floodplain. But the cold truth of it is, we no longer have any idea where the 500 year flood plains are anymore. You need decades of weather observations of a stable climate to come up with accurate flood maps. And we just don't have that kind of reliable data anymore. Unless you happen to live on the top of a very tall hill, you really can't be sure you don't live in a flood zone of some sort or another.

[-] Soggy@lemmy.world 1 points 2 months ago

I live on top of a hill that drains directly into the ocean. If my house floods I have different problems.

I also won't live on the side of hills without a very clear understanding of the local watershed, soil stability, nearby land rights... I took a lot of Earth science classes and honestly it's kinda traumatizing to peek behind the curtain. Shit is fucked.