• jeffw@lemmy.world
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    14 days ago

    Maybe I’m an idiot but how does “mm per year” classify you as being at a high risk of sinking? Seems a lot different depending on your elevation. The highest peak could sink a meter per year and still not be at risk of flooding

    • deadbeef79000@lemmy.nz
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      14 days ago

      True, for not being at risk from flooding from the ocean given elevation (from sea level).

      Local flooding: entirely possible. For example, over a few years city X sinks by a cm, because of that in a flood situation there’s slightly more flood water. Over a large area that might be quality a few acre-feet of water: that’s quite a lot more water.

      It’s less that the likely hood of a flood increases and more that the severity of a flood increases.

  • mojofrododojo@lemmy.world
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    13 days ago

    LOL @ Seattle…

    yeah, bits will be underwater one day. thank goodness most of the town is up on giant ridge lines and hills.

    • I suspect the Houston number is actually Katy or the gre at Houston area as a whole because last I check Houston-proper has taken some action to reduce the pumping of ground water and mostly stabilized? But the surrounding suburbs think not wanting flooding is commi BS probably.

    • bonenode@piefed.social
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      14 days ago

      I know you refer to the credit card comparison but right at the top it literally says “mm/year”.

        • nocturne@slrpnk.net
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          14 days ago

          If we use a bus at 45’ and convert that into milli-school bus you get 0.045 feet = 1 milli-school bus. 1 milli-school bus = 13.761mm.

          1 mm = 0.00328084 milli-school bus