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Earth News

UNESCO Says Venice Should Be Added To Heritage Danger List (washingtonpost.com) 50

The United Nations' cultural protection agency, UNESCO, plans to recommend adding Venice to its list of World Heritage sites in danger, as the iconic island city faces simultaneous threats from climate change, mass tourism and rapid urban development. From a report: The designation, meant to encourage remedial actions and marshal international support for World Heritage sites, is recommended in a UNESCO report published Monday ahead of its World Heritage Committee meeting in September. The List of World Heritage in Danger identifies dozens of sites that are "threatened by serious and specific dangers," such as armed conflict or natural disasters. It includes Odessa in Ukraine, which was added in January because of war-related threats, and the Everglades in Florida, which faces environmental degradation.

The proposal by UNESCO is the latest alarm bell over the future of Venice -- one of the world's most fragile and popular cities -- as well as the Italian government's efforts to protect it. Built across 118 small islands, the city was first designated as a World Heritage site in 1987 for its architectural splendor and work of master artists including Giorgione and Titian, among others. "It is tragic that the state of conservation of one of the most treasured cultural sites in the world is of such concern" that experts are considering Venice for the "in danger" list, Helene Marsh, a professor of environmental science at Australia's James Cook University who has researched climate change and World Heritage sites, said in an email. A warming world poses an "existential threat" to preservation and conservation, Marsh said.

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UNESCO Says Venice Should Be Added To Heritage Danger List

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  • A city built on/in the water hundreds of years ago won't last forever without maintenance. What's more surprising is that "rapid development" is also a problem. If the area is that bad, then why so much development? They are literally walking themselves off the cliff if true.
    • Re:Not Suprising (Score:4, Insightful)

      by Midnight_Falcon ( 2432802 ) on Tuesday August 01, 2023 @02:06PM (#63731872)
      But there HAS been tons of maintenance over the last two hundred years in Venice. The problem is no maintenance can cause the city to rise above the rising sea levels. There's a human problem here, but it's not lack of maintenance or development, it's climate change.
      • Compared to subsidence, sea level is completely irrelevant.

        https://psmsl.org/data/obtaini... [psmsl.org]

        As always, tidal gauges are the best weapon against sea level rise.

        • by gtall ( 79522 )

          Errr...did you actually learn how to read graphs?

          Anyhow, here's a more uptodate graph:

              http://www.ioc-sealevelmonitor... [ioc-sealev...toring.org]

          Seems like sea level is rising everywhere. Subsidence only happen in some localities mainly due to local geologic conditions.

          • Errr...did you actually learn how to read graphs?

            Have you actually learned how to read?

            The story is specifically about Venice. Which is only of those localities that is experiencing subsidence. Having read about Venice, it's because the wood posts most of the city was built on are sinking deeper into the silt on the sea floor in that location.

            Your updated graph basically shows that they've gone from 7000 mm to 7200mm. Not significantly different than Pinky's chart. We're looking at 20cm of rise over the last ~100 years or so.

            But some googling suggests

      • by jbengt ( 874751 )

        The problem is no maintenance can cause the city to rise above the rising sea levels.

        The bigger immediate problem is that Venice is sinking even without any sea level rise.

      • The ultimate solution is actually pretty straightforward, even if it would make Venice somewhat less "authentic": over the course of a decade or so, temporarily block and drain its canals. Jack the buildings up a few feet, replace the old wood-piling foundations with concrete 2-3 feet higher, re-fill the canals, and move on to the next section. Maybe even excavate out a cut & cover subway under one of the canals, and lay a proper modern sewage system. Problem solved.

        Before someone brings up areas like S

        • don't use egypt as an example. the pyramids are literally in the middle of a land fill.
          • I was specifically using St. Mark's plaza ("Piazza San Marco" in Italian?) add an example of a public, historically sensitive area built at ground level on an island that floods frequently... and used Abu Simbel to illustrate the accomplishment of a seemingly-impossible preservation task achieved via modern engineering.

            On the 0.1% chance you've never heard of Abu Simbel, there was a tomb carved into the base of a hill, and statues carved into the face of the hill. In the late 1960s, they literally sliced th

  • Amoral familialism (Score:5, Insightful)

    by Midnight_Falcon ( 2432802 ) on Tuesday August 01, 2023 @02:04PM (#63731866)
    So far, it seems as though children born today have a small chance of enjoying some of the things that we have: King Salmon, coral reefs, and now..Venice Italy. Ecologically, loss of these keystone species has tremendous ripple effects, and culturally loss of one of Western Civilization's greatest historical cities, spared even by the second world war, is a large-scale tragedy.

    This can be blamed on 'amoral familialism' -- a familiar concept in Italy (read Robert Putnam's Making Democracy Work), countless people not either caring about climate change or believing it is a real scientific fact. The result is our children are likely to inherit a world that lacks many of the things we enjoyed, and may well be far more challenging to inhabit.

    • Quick question (Score:2, Insightful)

      This can be blamed on 'amoral familialism' -- a familiar concept in Italy (read Robert Putnam's Making Democracy Work), countless people not either caring about climate change or believing it is a real scientific fact. The result is our children are likely to inherit a world that lacks many of the things we enjoyed, and may well be far more challenging to inhabit.

      Quick question: How much of Venice's problems are caused by climate change, and how much are caused by the sinking landscape?

      I only ask because I had read that Venice was formed from buildings built on land that gradually sinks, albeit slowly, over the centuries.

      For an analogy, are wildfires caused by climate change, or by decades of poor forest management and arson?

      Before you assign your explanation as the cause, you need to discount other, competing hypotheses.

      • Re:Quick question (Score:5, Interesting)

        by Geoffrey.landis ( 926948 ) on Tuesday August 01, 2023 @02:26PM (#63731902) Homepage

        Both.

        And the problems are multiplicative, not merely additive.

        • by MobyDisk ( 75490 )

          And the problems are multiplicative, not merely additive.

          What does that mean?

        • Both.

          And the problems are multiplicative, not merely additive.

          In Venice's case the problem is literally additive. Sea level rising + buildings sinking. Sea levels rising do not cause buildings to sink faster relative to their starting point. The wildfire issue is additive, since fires cause more carbon release which causes a positive feedback loop. Venice's problem does not.

      • Re:Quick question (Score:5, Insightful)

        by Midnight_Falcon ( 2432802 ) on Tuesday August 01, 2023 @03:08PM (#63731970)

        Quick question: How much of Venice's problems are caused by climate change, and how much are caused by the sinking landscape?

        I only ask because I had read that Venice was formed from buildings built on land that gradually sinks, albeit slowly, over the centuries.

        For an analogy, are wildfires caused by climate change, or by decades of poor forest management and arson?

        Before you assign your explanation as the cause, you need to discount other, competing hypotheses.

        A classic "Look over here! There may be another cause!" diversion from climate change, when it's patently obvious climate change is the primary driver of issues (amplified by other factors like in Venice case, the sinking and pumping of groundwater). The example of wildfires you cite is one of the simplest to refute because of robust geological evidence.

        Wildfires, at least the ones here in California, have not been as significant in thousands of years: https://www.lemonde.fr/en/envi... [lemonde.fr]

        Poor forest management (such as a certain president's insistence that California "rake its forests," which the largest are actually under Federal jurisdiction) in a largely wild, unspoiled land cannot explain the start of fires unprecedented in magnitude for millenia; especially since they start in "wilderness" areas requiring a special permit to enter and not often frequented by humans. Therefore, "poor forest management" cannot be seen as a valid "competing hypothesis," but rather a silly misdirection that completely fails to explain the core problem.

      • by gtall ( 79522 )

        Just look at average rainfall in the American West. Lemme guess, it stopped raining because people weren't managing rain properly. Dingbat.

    • Yeah, but think of the video games they'll have. Full VR with characters who can use AI to respond appropriately to any situation.

      I mean, seriously, fuck Venice, I want *that*.

  • Otherwise it's about as useful as the scale in my bathroom. Scary in the abstract, but otherwise not impacting my behaviour...

  • UNESCO Says Venice Should Be Added To Heritage Danger List

    At first glance I thought it said "Science" not "Venice" -- and thinking about it now, I'm okay with either.

  • It's foolish to think that Venice as it's been known can be saved, for centuries it's been subjected to flooding from storms and the normal tides. There are old films and newsreels showing flooding and devastation in Venice going back decades a lot of the buildings still have high water marks indicated on them from past flooding events. Go to the museums in Venice and you can see the platform shoes worn well through the 19th century so citizens didn't get their feet wet. Hell, a good storm or earthquake wo

  • I know that UNESCO has a narrative, but they have completely ignored that Venice is sinking naturally, without the standard "reasons".

    https://lifeinitaly.com/venice... [lifeinitaly.com] It is sinking an average of a millimeter a year. So if we are going to be realistic about preserving Venice, we need to rebuild the entire city with new pilings that are a lot higher.

    But then that would destroy the charm of the floating city. In reality, it is a failed place in the long term. An experiment that was destined to fail even

    • by jbengt ( 874751 )

      An experiment that was destined to fail even if there was no such thing as sea level rise.

      Venice was less a failed experiment and more a successful attempt to build in a place that's hard for raiders and warriors to attack and pillage.

  • I'm going under
  • Its been sinking since... forever? yeah so this is BS. Also who gives a shit. Either youve seen it once or havent been and dont care.

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