http://quadrant.org.au/opinion/peter-smith/2014/02/statistics-dummies-warmists/
These breathless reports about the planet never being hotter, take them with a truckload of salt. How can anyone place the slightest credence in claims being advanced by people who fail to grasp, or refuse to grasp, the simple truth about trend lines and temperature
“Read all about it! Read all about it! It’s the hottest year on record — except for another five hotter years!” A new twist can be put on the aphorism attributed to Benjamin Disraeli. It is now clear that there are lies, damn lies, and the interpretation of climate statistics.
The World Meteorological Organization (WMO) reported that last year (2013) tied with 2007 for the sixth-hottest year on record – i.e. since 1850. “This is confirmation of the trend of global warming of the planet,” according to WMO Secretary-General Michel Jarraud. In case you missed the import, Mr Jarraud added that thirteen of the fourteen warmest years on record have occurred in the 21st Century.
The latest version of the Hadley Centre’s global surface temperature series HadCRUT 4 shows a trend rise of about 0.8 degrees Celsius between 1850 and 2013. This upward trend steepened between around 1910 and 1940 and, following a period of becoming negative between 1940 and 1975, steepened somewhat more acutely between around 1975 and 2000 before leveling.
It seems clear, based on both the surface and satellite records, that since around 2000/’01 — that is, for the last 12 or 13 years — temperatures have plateaued. I don’t really buy the 17-year cessation being bandied about. I think there is too much noise created by the sharp rise in temperature in 1998 to draw firm conclusions until just after the beginning of this century. But form your own conclusions. Data can be sourced from the excellent and universally well-regarded web site woodfortrees.org.