Not exact matches
-- we show no statistically significant warming for the continent as a whole
over 1957 - 2006 (our finding is 0.06 ± 0.08 degrees
C / decade, using a standard 95 % confidence
interval; I state all subsequent trends on this basis), whereas S09 showed statistically significant warming of 0.12 ± 0.08.
Diurnal temperature variation exceeds the 0.74
C twentieth century warming trend by orders of magnitude, but these variations obviously even out
over long
intervals.
If you have data
over longer
intervals showing spurious values much greater than 8
C, that would change things, but I suspect that as the
intervals lengthen, the errors will diminish.
C&W's temperature change
over the last 15 years is +0.17
C (trend *
interval), +0.29
C for the last 20 years.
b Trends surface temperature from the GOGA CAM3 simulations (background colorscale; air temperature
over sea ice and SST elsewhere) along with the Z850 trend produced by the model simulations (black contours; negative dashed and positive solid;
interval of 3 m / decade) and the simulated convective precipitation trends (positive green contours, negative red contours, contoured at − 0.7, − 0.3, − 0.1, 0.1, 0.3, and 0.7 mm / day / decade, shown only for 45 ° S — 45 ° N. (
c) As in (b) but for the TOGA CAM3 simulations.
As shown in the graph below, cosmic - ray intensity (as measured by the radioactive carbon isotope
C - 14) and terrestrial climate (as measured by the oxygen isotope O - 18) correlate in amazing detail
over an
interval of at least 3000 years (see graph below; the bottom graph is the central section, blown up to reveal detail)
The speedometer for the 15 years 4 months January 2001 to April 2016 shows the [1.1, 4.2]
C ° / century - equivalent
interval of global warming rates (red / orange) that IPCC's 1990, 1995 and 2001 reports predicted should be occurring by now, compared with real - world, observed warming (green) equivalent to less than 0.5
C ° / century
over the period.