IPCC Moves Goal Post on Climate Definition- Secretly

  While reading  about this latest fixing of policy to sell an agenda I was reminded of the WHO "redefining" epidemic in order to sell the desired epidemic agenda...Dial back to 2009: WHO's pandemic definition change kickstarts the H1N1 fear showClearly 'redefining' anything to fit the desired goal is nothing new under the sunLet's apply the rejigging of reality to the scam of AGW: Wattsupwiththat

The definition of ‘climate’ adopted by the World Meteorological Organisation is the average of a particular weather parameter over 30 years. It was introduced at the 1934 Wiesbaden conference of the International Meteorological Organisation (WMO’s precursor) because data sets were only held to be reliable after 1900, so 1901 – 1930 was used as an initial basis for assessing climate. It has a certain arbitrariness, it could have been 25 years.

For its recent 1.5°C report the IPCC has changed the definition of climate to what has been loosely called “the climate we are in.” It still uses 30 years for its estimate of global warming and hence climate – but now it is the 30 years centred on the present.

Rather then 30 years of weather that has already occurred the IPCC is going to use the same 30 years as it's parameter for measure - but include a projection 15 years into the future.

There are some obvious problems with this hidden change of goalposts. We have observational temperature data for the past 15 years but, of course, none for the next 15 years. However, never let it be said that the absence of data is a problem for inventive climate scientists.

This proposition was put before the recent IPCC meeting at Incheon, in the Republic of Korea and agreed as a reasonable thing to do to better communicate climate trends. Astonishingly, this new IPCC definition mixes real and empirical data with non-exiting and speculative data and simply assumes that a short-term 15-year trend won’t change for another 15 years in the future.

This new definition of climate and global warming is not only philosophically unsound, it is also open to speculation and manipulation. It is one thing to speculate what the future climate might be; but for the IPCC to define climate based on data that doesn’t yet exist and is based on expectations of what might happen in the future is fraught with danger.

To see the future temperature and climate the IPCC envisage in their report consider their Summary for Policy Makers figure 1, (click on image to enlarge.)


The IPCC’s attempt to move the goalposts is highly questionable. Non-existing data extrapolated for assumed temperature trends over the next 15 years should not be part of a formal definition of what constitutes climate.

UPDATE: From the IPCC Summary for Policymakers report, page 4, there is this footnote that defines the IPCC’s erroneous thinking. – Anthony

 And yes, I checked the IPCC Summary report myself- what you see above is included in the report.It's all perception management (mass manipulation) all the time.