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silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 1 year ago

American Dams Weren’t Built for Today’s Climate-Charged Rain and Floods

www.bloomberg.com

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American Dams Weren’t Built for Today’s Climate-Charged Rain and Floods

www.bloomberg.com

silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 1 year ago
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Hurricane Helene brought dams in North Carolina and Tennessee close to their breaking point. Many US dams are decades old and weren’t designed for the impacts of climate change.
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  • Track_Shovel@slrpnk.net
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    1 year ago

    There are more than 92,000 dams nationwide, according to a US Army Corps of Engineers inventory. Of those, some 16,000, or close to 20%, are classified as having “high hazard potential.” That doesn’t mean they are at increased risk of failure, but that their failure would entail a significant loss of life or property.

    See the Mount Polley TSF failure of 2015 or the Brumandinho dam disaster for visualizations

  • Peppycito@sh.itjust.works
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    1 year ago

    Well, they probably could have handled all this rain 100 years ago. When they were new. Invest in your infrastructure kids!

  • greenshirtdenimjeans@sh.itjust.works
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    9 months ago

    deleted by creator

    • metaStatic@kbin.earth
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      1 year ago

      black bag over a permanent roadworks sign

  • DominusOfMegadeus@sh.itjust.works
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    1 year ago

Climate - truthful information about climate, related activism and politics.@slrpnk.net

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

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