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Posts Tagged ‘British monachs’

The global mean temperature is not constant – it varies over many timescales. Over the last 150 years the temperature of our planet has been increasing. The graph below shows (in red) the mean sea surface temperature over the North Atlantic since 1870. The data comes from the HadISST data set, produced by the Met Office Hadley Centre. A timeline of the kings and queens of Britain is shown along the top – leaving out Edward VIII who was king for less than a year between George V and George VI.

kings_and_queens

So Edward VII had the coldest reign, George V led to warming, George VI managed to maintain these temperatures then Elizabeth II has turned up the heating in the second half of her reign.

The causes of these changes are not fully understood. Edward VII’s cooling is thought to be due to volcanic eruptions – such as the eruption of Santa Maria in 1902. Elizabeth II’s warming is though to be due to anthropogenic causes, although some contribution from internal variability has also been suggested. George V’s warming is least understood – the Intergovernmental Panel on Climate Change (IPCC) state it is very likely due to natural causes, likely some contribution from manmade causes and possible that internal variability is also involved.

 

 

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