Extreme Weather

Extreme weather and Global Warming are linked, aren’t they?

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The simple way to prove that the extreme weather events we are experiencing today are indeed due to Global Warming, is to look at what happened to the weather during the last warming period, the “Medieval Warming Period (MWP)”. The MWP happened between 800 – 1300 AD, a time when world population rapidly increased and where people prospered due to longer growing seasons and the increased availability of food.

To set the scene, the MWP was a time in history when it was proposed that the climate increased in temperature to a level that was hotter than it is today (Click HERE to find out more).

Now to know what was happening at that time in the world a gentleman call James A Marusek pulled together “A Chronological Listing of Early Weather Events” This document details the weather events that were recorded by local people in the UK:

In 895 there were “hailstones like duck eggs”. In 1035 there was a frost on “Midsummer Day” and ” all grass, grain and fruit” were destroyed.  The winter of 1060 “was unusually hard and strong” it caused wheat and grape harvests to fail leading to terrible famine. In 1150 it was recorded that it “was remarkable for a severe frost, which commenced on the 9th December and continued until the beginning of March, during a great part of time  the River Thames was frozen so hard as to allow carts and other carriages to pass over the ice.” Now all of these events happened during a global warming period.

If we then look at the weather during the “Little Ice Age” which happened immediately after the MWP i.e. proposed to be between 1300 and 1850 AD then we see more extreme weather events:

During the summer of 1645 the weather in London was “hot and dry”.  Between 1651 and 1654 there was “scorching hot dry summers” and in 1666 “extremely hot weather saw oranges ripen in the open at Hackney” and shortly there after there was the “Great Fire of London” which is proposed to have happened as a result of 2 months of dry weather and drought.

What can be concluded then from weather observations during what is considered to be “Warming Periods”, such as we are proposed to be in now (in a Warming Period within the current Ice Age), and during “Cooling Periods” which is likely to happen immediate after any Warming Period.  The answer is simple; what we can expect during a global Waring Period is that there will be extreme weather events (whether heat waves or snow storms).  Extreme temperature fluctuations seems to cause extreme weather events, BUT not necessary events that you would expect given that world temperatures as increasing i.e. just because we are in a Waring Period doesn’t mean we will not experience extreme cold weather events and when we do enter a Cooling Period (which will happen at some point) it does not mean to say we will not see more extreme hot weather events during that time.

What is interesting is that in all events there is extreme wet weather which has lead to extreme flooding and the loss of life (again have a look at A Chronological Listing of Early Weather Events  and you will see these events as recorded).

Yes Global Warming and weather appear to be linked but perhaps not as we would expect.

Food for thought!

 

 

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