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ENVIRONMENT: GLOBAL WARMING AND CLIMATE CHANGE :

STATISTICS :

DATA :

MEASUREMENT :

SCIENCE :

TECHNOLOGY:

Thorough, Not Thoroughly Fabricated:
The Truth about Global Temperature Data

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Thorough, Not Thoroughly Fabricated:
The Truth about Global Temperature Data

How thermometer and satellite data is adjusted and why it must be done.

by Scott K. Johnson

January 21, 2016 10:30am EST

Ars Technica

Scientific Method

Science and Exploration

http://arstechnica.com/science/2016/01/thorough-not-
thoroughly-fabricated-the-truth-about-global-temperature-data/

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A shorter URL for the above link:

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http://tinyurl.com/hku2mdd

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In June, NOAA employees altered temperature data to get politically correct results.

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At least, that’s what Congressman Lamar Smith (R-Tex.) alleged in a Washington Post letter to the editor last November. The op-ed was part of Smith’s months-long campaign against NOAA climate scientists. Specifically, Smith was unhappy after an update to NOAAs global surface temperature dataset slightly increased the short-term warming trend since 1998. And being a man of action, Smith proceeded to give an anti-climate change stump speech at the Heartland Institute conference, request access to NOAA’s data (which was already publicly available), and subpoena NOAA scientists for their e-mails.

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Smith isn’t the only politician who questions NOAA’s results and integrity. During a recent hearing of the Senate Subcommittee on Space, Science, and Competitiveness, Senator Ted Cruz (R-Tex.) leveled similar accusations against the entire scientific endeavor of tracking Earths temperature.

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I would note if you systematically add, adjust the numbers upwards for more recent temperatures, wouldnt that, by definition, produce a dataset that proves your global warming theory is correct? And the more you add, the more warming you can find, and you dont have to actually bother looking at what the thermometer says, you just add whatever number you want.

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There are entire blogs dedicated to uncovering the conspiracy to alter the globe’s temperature. The premise is as followsthrough supposed adjustments, nefarious scientists manipulate raw temperature measurements to create (or at least inflate) the warming trend. People who subscribe to such theories argue that the raw data is the true measurement; they treat the term adjusted like a synonym for fudged.

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Peter Thorne, a scientist at Maynooth University in Ireland who has worked with all sorts of global temperature datasets over his career, disagrees. Find me a scientist whos involved in making measurements who says the original measurements are perfect, as are. It doesnt exist, he told Ars. Its beyond a doubt that we have tohave todo some analysis. We cant just take the data as a given.

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Speaking of data, the latest datasets are in and 2015 is (as expected) officially the hottest year on record. It’s the first year to hit 1C above levels of the late 1800s. And to upend the inevitable backlash that news will receive (*spoiler alert*), using all the raw data without performing any analysis would actually produce the appearance of more warming since the start of records in the late 1800s.

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We’re just taking the temperaturehow hard can it be?

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So how do scientists build datasets that track the temperature of the entire globe? That story is defined by problems. On land, our data comes from weather stations, and theres a reason they are called weather stations rather than climate stations. They were built, operated, and maintained only to monitor daily weather, not to track gradual trends over decades. Lots of changes that can muck up the long-term record, like moving the weather station or swapping out its instruments, were made without hesitation in the past. Such actions simply didnt matter for weather measurements.

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The complete article may be read at the URL above.

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Sincerely,
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