Sea Level Decline Over The Past 1,700 Years

When the Romans built Pevensey Castle in southeast England 1,700 years ago, it was nearly surrounded by ocean and had a natural moat. Same story when the Normans occupied it during the Medieval Warm Period.

The castle is now a mile away from the ocean, and the bay is farmland.

Climate fraudster Michael Mann has since erased the Medieval Warm Period. Because that is what climate scientists do – erase the past and replace it with the propaganda politicians require of them.

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14 Responses to Sea Level Decline Over The Past 1,700 Years

  1. toorightmate says:

    Now let’s be fair.
    If ANY data does not fit the model then it must be extinguished by homogenisation.

  2. Gail Combs says:

    Pevensey Castle is in southeast England near Hastings on the English Channel.

    The next question is has there been any post glacial rebound?
    The answer is NO!

    Green is rising
    Orange is no change
    Red is SINKING!

  3. Tom Halla says:

    Damn inconvenient thing, history. Tends to get in the way of the narrative.

  4. The other brad says:


  5. Santa Baby says:

    I guess the “rivers” and streams are responsible for building up sediments there? Just like in BanglaDesh?

    • GeologyJim says:

      Sedimentation is not likely the cause of Pevensey’s isolation from the coast. The drainage basin is too small and the slopes are too gentle to produce large transport of sediment.

      The Castle’s history is clear evidence of sea-level high-stand during both Roman and Medieval times, and sea-level declines in intervening centuries

      The fact that the south coast of England has been sinking due to post-glacial rebound (see Gail Combs above) just means that the sea-level decline since the Medieval Warm has been even greater than the present altitude difference between the castle foundation and modern sea-level.

      There are other Medieval shore castles in the British Isles that currently distant from the modern coast due to sea-level decline in the last millenium

      Facts on the ground are hard to dispute, similar to the remains of human habitation that are exposed beneath European glacier fronts that are currently receding

      Conclusion: Conditions have been much warmer than today twice in the past 2,000 years, and climate change is cyclical, not linear/accelerating

      • Jason Calley says:

        “Facts on the ground are hard to dispute, similar to the remains of human habitation that are exposed beneath European glacier fronts that are currently receding”

        Which is why the alarmists simply ignore the facts.

      • Harold Rice says:

        Harlech Castle is another good example. Used to be able to sail to the bottom of the cliff, now it is inland.

  6. Nigel Boyle says:

    Gail Combs shows it red and sinking, the Roman map above show the reverse for 1700 years. This proves gravity, what goes up must come down!

    • Gail Combs says:

      Yes, remove millions of tons of ICE from Scotland and Scotland increases in height. However since the magma that got squished out of Scotland now flows back in, England, where there was no ice sinks, just like Florida since the ground water is getting pumped out.

      This is seen all over the world not just in England. Note the Red (for rising in this case) is where the glaciers were.

  7. Douglas Hoyt says:

    Related to this is the recent discovery of the ancient docks of Athens Greece. They were found about a mile inland from the present shoreline.

  8. Lee says:

    Places that have earthquakes, like Greece, are not a good comparison. The ancient docks in Athens may have risen, just as the ancient city of Alexandria sank below the sea after an earthquake. There is really no guarantee that any place on the earth is at the exact same level it was centuries ago. Just because it isn’t moving now means nothing.

  9. Lani Roscoe says:

    All this proves planet earth is living, growing and in constant flux. Mankind has no control and never will be able to control what the planet is doing.

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