I kinda hate to admit this ... but this chart puzzles me ... according to the link the chart came from, this says DemoNazis are trying to destroy the United States ... why do you think this says anything else? ... it's pretty clear here how Joe Biden is going to confiscate my mortgage and only pay me pennies on the dollar ... I don't see where this says anything else ...
This is non-standard data set ... like some Russian solder made it up to get folks to vote for The Donald ... bears no resemblance to almost all the actual data we have ... pick any airport in the US and compare ... see, no resemblance ... if you took twenty airports and averaged them, you'll find they far more closely follow the NOAA curve ... you know, math ...
It surprises me when people have difficulty understand this section, it is about the spread of temperature change in various time subsets, versus the nearly monotonic rise in CO2 levels in the atmosphere. There is no cause/effect relationship between them in the chart, THAT is the point!
"This first chart shows the
temperature change plots of the IPCC's gold-standard global temperature dataset, along with the monthly cumulative growth of atmospheric CO2 levels (ppm) since June 1, 1988 through June 2020. Multiple periodicities of temperature change include 1-year (twelve month); 5-year (60 months); 10-year (120 months); 15-year (180 months); and, 20-year (240 months)."
"And the chart absolutely reflects an up/down pattern of temperature change for all periodicities, but clearly it does not demonstrate any significant relationship to the very substantial, monotonous linear growth of CO2 levels."
This should have been enough for you to figure out......, but I wonder?
He posted various time frames using the official HC4 temperature data, surely that was obvious?
The data is from hadleycrut4, the CO2 data is from the NOAA CO2 database. It is right at the bottom of the page in the link.
Note: Plots, temperature change and 36-month average calculations done with Excel. Sources: global
HadCrut dataset and
NOAA's CO2 dataset
Nothing unnatural about the chart set up.