Lets change the way we measure temperature, lets homoginise the past, lets pretend the cooling/warming periods never happened lets pretend the last summer is now the climate and the previous 18 years of flat temperature was just weather, lets pretend the coming La NIna isn’t coming, lets pretend El Nino years should all be the same and lets pretend that climate changes now are somehow different to past changes.

Now can someone answer this –

Co2 rose 4ppm in the 21 years 1860 – 1880 and the rate of warming was 0.163 c per decade.

Co2 rose 12ppm in the 31 years 1910 – 1940 and the rate of warming was 0.15 c per decade.

Co2 rose 24ppm in the 24 years 1975 – 1998 and the rate of warming was 0.166 c per decade.

Co2 rose 35ppm in the 35 years 1975 – 2009 and the rate of warming was 0.161 c per decade.

Now in between those warming periods temperature was basically flat or falling.

Co2 rose 19ppm in the 36 years 1940 – 1975 and the temperature ( fell ) 0.166 c per decade.

So no statistical difference between the rates of rise or fall but Co2 is climbing throughout.

We know it’s been warming since the end of the LIA around 1850 and according to climate scientist James Hansen 120000 years ago it was warmer with sea level 6 – 9 metres higher yet Co2 levels were around 100ppm less.

Question – The correlation between Co2 and temperature is what??

PS.The Co2 measurements come from Law Dome and Mauna Loa and the warming temperature rate is from Professor Phil Jones a climate scientist whose compilation of historic global temperature data from the late 1800s to the present is a key element of the IPCC’s reports.

The cooling is as attested to in Science News vol. 107 March 1975 by John H Douglas –  Having risen about 1.1 degrees C. between 1885 and 1940, the temperature has already fallen back some 0.6 degrees, and shows no signs of reversal. This question has led many scientists to call for new emphasis on the study of climate and for planning ahead to meet any eventuality. Typical of these expressions of concern is the recent National Academy of Sciences report on global climate change (SN:1/25/75,p. 52), with its pleas for immediate action. According to the academy report on climate, we may be approaching the end of a major interglacial cycle, with the approach of a full-blown 10,000-year ice age, a real possibility. Again, this transition would involve only a small change of global temperature-2 or 3 degrees but the impact on civilization would be catastrophic…….( Sound familiar.)