Climate scientists 'fabricated' temperature data

Fox News host Dana Perino joined several of her colleagues in casting doubt on the data scientists use to track temperature changes over time. As stated by Perino “ ...it was reported that the temperature readings have been fabricated and it's all blowing up in their (the White House) faces."

Each month, readings from thousands of land-based weather stations around the world are shared through the Global Historical Climatology Network. To measure ocean temperatures, there is a flow of data from buoys and ships. Climate trends play out over long periods of time, and the challenge has been to deal with changes in the way temperature is measured that have nothing to do with the weather itself.

What happens is, local officials might just move a station from a valley to a nearby hilltop. They might change the time of day when they record their measurements from sunrise to sunset. They might change the kind of thermometer they use…and so on. In the ocean, the practice once was to haul up a bucket of water. Later, the standard practice was to measure the temperature from the engine’s intake valve.

What researchers at the National Climatic Data Center do is take the raw temperature readings and apply a boatload of statistical techniques to pick out the most reliable data. Where necessary, they adjust the readings to account for the human factors that would skew the data regardless of what happened with actual temperatures.

In the United States, with about 5% of Earth’s land area, the official data file raised temperatures compared to the original readings.

Here you can find more about this.

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