Wednesday, November 30, 2022

Venice, Italy, Just Had Its Highest Flood Tide On Record. Here's Why It Wasn't News

The huge flood that didn't happen. The first test of a $6 billion
project worked: A near record storm tide in Venice, Italy
did not flood the historic city, for a change.
 Three years ago, the second highest tide on record hit  flood prone Venice, killing two people and flooding 85 percent of Venice, including St. Mark's Basilica.  

That flood was all over the headlines at the time. 

This past week, a similar tide menaced Venice, and I bet even people who closely pay attention to the news never heard about it. 

That's because Venice this time is fine. 

Here's why, according to the Washington Post:

"That's because of a $6 billion engineering project designed to protect Venice from mass flooding and the exhausting cycle of cleanup and recovery. The lagoon city's inlets are now guarded by 78 rectangular metal barrier, each the height of a five-story building, that are pumped with air and raised from the sea floor any time high waters threaten it. 

It's a landmark climate change solution, one requiring 30 years of planning and 20 years of construction, that has reduced fears of Venice turning into a modern-day Atlantis."

Venice has been inundated more frequently as climate change has raised sea levels. That makes high tides even higher, increasing flood problems in this region. Plus, the land in Venice is sinking, exacerbating the problem.

The actual protections around Venice are pretty cool. On most days, the barricades are hidden under water. Ships come and go just fine. During normal high tides without flooding salt water from the Adriatic flushes out the lagoons of Venice, so the water doesn't turn into a gross mass of algae, pollution, dangerous bugs, stink and yuckiness. 

The expensive safeguards clearly worked for Venice last week, but will that last forever?

As the Washington Post reports, the expensive engineering project that prevented a flood in Venice might not last forever. Projections call for a 30 centimeter (about a foot) rise in sea levels by mid-century. 

If that happens, the $6 billion project that project won't work anymore. At least not as well as it did last week. Of course, if emissions are cut dramatically in the next couple of decades, that would buy more time, making the system that protects Venice last a lot longer .

Venice was protected during the storminess of the past week, but not all of Italy was. 

As Al Jazeera reports, at least seven people, including a newborn and two children, were killed on Ischia island, on the south of Italy, as a landslide triggered by torrential rains hit a small town At last report, five people were still missing.

Five inches of rain poured down on the island within six hours.

Not sure if this tragedy was entire related to climate change, but storms are getting more and more extreme as time goes on. So this in consistent with global warming or weirding or whatever you want to call it. 


 

 

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