This new version found past temperatures had been cooler than previously thought, and recent ones higher – so that the warming trend looked steeper. For the period 2000 to 2014, the paper increased the rate of warming on land from 0.15C to 0.164C per decade.
In the weeks after the Pausebuster paper was published, Dr Bates conducted a one-man investigation into this. His findings were extraordinary. Not only had Mr Karl and his colleagues failed to follow any of the formal procedures required to approve and archive their data, they had used a ‘highly experimental early run’ of a programme that tried to combine two previously separate sets of records.
This had undergone the critical process known as ‘pairwise homogeneity adjustment’, a method of spotting ‘rogue’ readings from individual weather stations by comparing them with others nearby.
However, this process requires extensive, careful checking which was only just beginning, so that the data was not ready for operational use. Now, more than two years after the Pausebuster paper was submitted to Science, the new version of GHCN is still undergoing testing.
Moreover, the GHCN software was afflicted by serious bugs. They caused it to become so ‘unstable’ that every time the raw temperature readings were run through the computer, it gave different results. The new, bug-free version of GHCN has still not been approved and issued. It is, Dr Bates said, ‘significantly different’ from that used by Mr Karl and his co-authors.
Dr Bates revealed that the failure to archive and make available fully documented data not only violated NOAA rules, but also those set down by Science. Before he retired last year, he continued to raise the issue internally. Then came the final bombshell. Dr Bates said: ‘I learned that the computer used to process the software had suffered a complete failure.’
The reason for the failure is unknown, but it means the Pausebuster paper can never be replicated or verified by other scientists.
The flawed conclusions of the Pausebuster paper were widely discussed by delegates at the Paris climate change conference. Mr Karl had a longstanding relationship with President Obama’s chief science adviser, John Holdren, giving him a hotline to the White House.
The red line shows the current NOAA world temperature graph - elevated in recent years due to the ‘adjusted’ sea data. The blue line is the Met Office's independent HadCRUT4 record. Although they are offset in temperature by 0.12°C due to different analysis techniques, they reveal that NOAA has been adjusted and so shows a steeper recent warming trend.
They were forced to correct it: 18 months after the ‘Pausebuster’ paper was published in time for the 2015 Paris climate change conference, NOAA’s flawed sea temperature dataset is to be replaced. The new version will remedy its failings, and use data from both buoys and satellites (pictured) – which some say is the best data of all. The new version will show both lower temperatures and a lower warming trend since 2000
Mr Holdren was also a strong advocate of robust measures to curb emissions. Britain’s then Prime Minister David Cameron claimed at the conference that ‘97 per cent of scientists say climate change is urgent and man-made and must be addressed’ and called for ‘a binding legal mechanism’ to ensure the world got no more than 2C warmer than in pre-industrial times.
President Obama stressed his Clean Power Plan at the conference, which mandates American power stations to make big emissions cuts.
President Trump has since pledged he will scrap it, and to withdraw from the Paris Agreement.
Read more: http://www.dailymail.co.uk/sciencetech/article-4192182/World-leaders-duped-manipulated-global-warming-data.html#ixzz4Y2jcg4qz
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