Both NASA and NOAA caught fixing Global Warming Data

Scientists at two of the world’s leading climate centres - NASA and NOAA - have been caught out manipulating temperature data to overstate the extent of the 20th century "global warming".

The evidence of their tinkering can clearly be seen at Real Science, where blogger Steven Goddard has posted a series of graphs which show "climate change" before and after the adjustments.

When the raw data is used, there is little if any evidence of global warming and some evidence of global cooling. However, once the data has been adjusted - ie fabricated by computer models -  20th century 'global warming' suddenly looks much more dramatic.

This is especially noticeable on the US temperature records. Before 2000, it was generally accepted - even by climate activists like NASA's James Hansen - that the hottest decade in the US was the 1930s.

As Hansen himself said in a 1989 report:

In the U.S. there has been little temperature change in the past 50 years, the time of rapidly increasing greenhouse gases — in fact, there was a slight cooling throughout much of the country.

However, Hansen subsequently changed his tune when, sometime after 2000, the temperatures were adjusted to accord with the climate alarmists' fashionable "global warming" narrative. By cooling the record-breaking year of 1934, and promoting 1998 as the hottest year in US history, the scientists who made the adjustments were able suddenly to show 20th century temperatures shooting up - where before they looked either flat or declining.

But as Goddard notes, the Environmental Protection Agency's heatwave record makes a mockery of these adjustments. It quite clearly shows that the US heat waves of the 1930s were of an order of magnitude greater than anything experienced at any other time during the century - far more severe than those in the 1980s or 1990s which were no worse than those in the 1950s.

These adjustments, however, are not limited to the US temperature data sets. Similar fabrications have taken place everywhere from Iceland to Australia.

The fact that supposedly reputable scientists can make these dishonest adjustments and get away with it is, notes long-time sceptic Christopher Booker, one of the more remarkable anomalies of the great climate change scam.

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NOAA Caught Manipulating Climate Data

The National Oceanic and Atmospheric Administration, criticized for manipulating temperature records to create a warming trend, has now been caught warming the past and cooling the present.

July 2012 became the hottest month on record in the U.S. during a summer that was declared “too hot to handle” by NASA scientists. That summer more than half the country was experiencing drought and wildfires had scorched more than 1.3 million acres of land, according to NASA.

According to NOAA’s National Climatic Data Center in 2012, the “average temperature for the contiguous U.S. during July was 77.6°F, 3.3°F above the 20th century average, marking the warmest July and all-time warmest month on record for the nation in a period of record that dates back to 1895.”

“The previous warmest July for the nation was July 1936, when the average U.S. temperature was 77.4°F,” NOAA said in 2012.

This statement by NOAA was still available on their website when checked by The Daily Caller News Foundation. But when meteorologist and climate blogger Anthony Watts went to check the NOAA data on Sunday he found that the science agency had quietly reinstated July 1936 as the hottest month on record in the U.S.

“Two years ago during the scorching summer of 2012, July 1936 lost its place on the leaderboard and July 2012 became the hottest month on record in the United States,” Watts wrote. “Now, as if by magic, and according to NOAA’s own data, July 1936 is now the hottest month on record again. The past, present, and future all seems to be ‘adjustable’ in NOAA’s world.”

Read More: The Daily Caller

The US has been cooling since the 1930s

 

When future generations try to understand how the world got carried away around the end of the 20th century by the panic over global warming, few things will amaze them more than the part played in stoking up the scare by the fiddling of official temperature data. There was already much evidence of this seven years ago, when I was writing my history of the scare, The Real Global Warming Disaster. But now another damning example has been uncovered by Steven Goddard’s US blog Real Science, showing how shamelessly manipulated has been one of the world’s most influential climate records, the graph of US surface temperature records published by the National Oceanic and Atmospheric Administration (NOAA). 

Goddard shows how, in recent years, NOAA’s US Historical Climatology Network (USHCN) has been “adjusting” its record by replacing real temperatures with data “fabricated” by computer models. The effect of this has been to downgrade earlier temperatures and to exaggerate those from recent decades, to give the impression that the Earth has been warming up much more than is justified by the actual data. In several posts headed “Data tampering at USHCN/GISS”, Goddard compares the currently published temperature graphs with those based only on temperatures measured at the time. These show that the US has actually been cooling since the Thirties, the hottest decade on record; whereas the latest graph, nearly half of it based on “fabricated” data, shows it to have been warming at a rate equivalent to more than 3 degrees centigrade per century. 

When I first began examining the global-warming scare, I found nothing more puzzling than the way officially approved scientists kept on being shown to have finagled their data, as in that ludicrous “hockey stick” graph, pretending to prove that the world had suddenly become much hotter than at any time in 1,000 years. Any theory needing to rely so consistently on fudging the evidence, I concluded, must be looked on not as science at all, but as simply a rather alarming case study in the aberrations of group psychology. 


via: The Telegraph