By Paul Homewood
h/t Paul Kolk
Propaganda continues!
Castles that have stood for hundreds of years are at risk of damage from climate change, conservation charity English Heritage warns.
The charity, which manages more than 400 historic sites across England, has highlighted six castles threatened by coastal erosion and rising sea levels.
These include Tintagel in Cornwall and Hurst Castle in Hampshire
It’s tempting for money to repair walls and improve defenses against storms and stronger waves.
“It seems that the entire natural dynamics of the coastline in some places has been accelerated by climate change,” Rob Woodside, British heritage director, told BBC News.
“What we’re trying to do now is basically buying time, so with places that we value and people want to take care of, we’re putting measures in place to protect them.”
Scientists widely agree that even if emissions of the greenhouse gases that warm the Earth are reduced dramatically, global sea levels will continue to rise for several hundred years. Higher sea levels mean stronger waves closer to shore and faster shoreline erosion.
Here are the six sites that English Heritage says are most at risk:
https://www.bbc.co.uk/news/science-enosystem-62995598
I looked at the first example, Hurst Castle, and climate change has nothing to do with the issue. I gave up the rest before I lost my will to live! If someone wants to follow those, I’ll be happy to publish.
According to the BBC:
Originally built by King Henry VIII of Tudor between 1541 and 1544, part of the east wing of Hurst Castle collapsed into the sea in February 2021 after its foundations were eroded. trail. As part of an effort to protect the castle, 5,000 tons of granite boulders were placed to form a barrier, or “embankment”.
I hear you say a classic case of sea level rise!
Well, maybe not.
According to Wikipedia:
Hurst Castle was a fortress founded by Henry VIII on the Hurst Spit in Hampshire between 1541 and 1544.
The Hurst Spit is a mile-long (1.6 km) shingle bank near the village of Keyhaven ..
And here is the land:
Anyone knowledgeable about geography knows that shingle peaks and banks are not permanent features; They are constantly shifting, sometimes gaining and sometimes losing, as the currents move around, and the Hurst Spit is no exception.
Engineer report to Hurst Spit . stability diagram explain more:
It’s doubly ironic, of course, that the Spit was largely formed from erosion-induced sediments in Christchurch Bay:
And as we often see in cases like this, it was the construction of sea defenses that upset the natural balance in Hurst:
Sea levels in the area have risen steadily since the 19th century, at a rate of 1.67mm a year at Portsmouth, and there is no obvious acceleration:
https://www.tidesandcurrents.noaa.gov/sltrends/sltrends_station.shtml?id=170-131#tabscenario
Such a small increase was not a significant factor in the erosion that destroyed the castle. The real culprit was the construction of coastal defenses in Christchurch Bay.
But don’t expect the BBC to tell you that.
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