My big gripe about Anthropogenic Global Warming is that all of the presented information is derived from computer models. What temperature data is presented is often cherry-picked or it has been "adjusted". This is a common practice and is deceitful. Here is a perfect example - from The Daily Caller:
REPORT: $127 Million Climate Supercomputer No Better Than ‘Using A Piece Of Paper’
A new study using an expensive climate supercomputer to predict the risk of record-breaking rainfall in southeast England is no better than “using a piece of paper,” according to critics.
“The Met Offices’s model-based rainfall forecasts have not stood up to empirical tests and do not seem to give better advice than observational records,” Dr. David Whitehouse argued in a video put together by the Global Warming Policy Forum.
Whitehouse, a former BBC science editor, criticized a July 2017 Met Office study that claimed a one-in-three of parts of England and Wales see record rainfall each winter, largely due to man-made climate change.
Using its $127 million supercomputer, the Met Office found in “south east England there is a 7 percent chance of exceeding the current rainfall record in at least one month in any given winter” and “a 34 percent chance of breaking a regional record somewhere each winter” when other parts of Britain were considered.
“We have used the new Met Office supercomputer to run many simulations of the climate, using a global climate model,” Met Office scientist Vikki Thompson said of the study.
The Met Office commissioned the study in response to a series of devastating floods that ravaged Britain during the 2013-2014 winter. Heavy winter rains caused $1.3 billion in damage in the Thames River Valley.
Scientists said supercomputer modeling could have predicted the flooding. Thompson said the supercomputer “simulations provided one hundred times more data than is available from observed records.”
Models simply do not work for climate - our planet is too dynamic and complex. The devastating floods were caused by two factors. The first was more rain than usual. The second was the fact that England is riddled with a very old system of canals that were used for heavy transportation during the 1800's and early 1900's until rail became widespread. These canals irrevocably altered the drainage of the watersheds but as long as the canals were dredged on a regular basis, everything was just fine. Unfortunately, regular dredging was not continued, these canals silted up and lost their ability to carry the water.
Fortunately, in 2012, England's Canal & River Trust (CRT) said that it will increase spending on dredging over the next ten years.
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