I'm going to repost my reply to a climate credulist in another thread that was saying NASA has temps for the last 140 years and they are going up.

And prior to the 20th century it's almost exclusively ground temps in the United States and until the late 20th century it was almost exclusively ground temps in the United States and Europe. And it doesn't actually show any significant net warming until it's run through pairwise homogeneity software which removes "bias" which just happens to equal the amount of warming measured over that time period. Odd.

Oh, shit, look it's NASA https://pubs.giss.nasa.gov/docs/1999/1999_Hansen_ha03200f.pdf

So, check Figure 4, 5 and 6 (page 37). Now notice Figure 6 for the United States temps, which I remind you is the only temps they have long term data for. No net warming. Figure 4 and Figure 5 shows net warming but that data doesn't exist; it's modeled. Now if you look at a newer NASA graph of US temperature it will show the same data with an upward trend added. That's not from measurement; it's from PH. There's literally no net warming that has every been measured; it's all data science voodoo.

The unadjusted data from 1999 shows faster warming from 1880 to 1940 than from 1970 to 1999. Pre-1940 carbon was pretty negligible so what caused the warming? Climate science is a fucking scam. Without adjustments there is no warming; it would be more scientific to believe that CO2 concentration causes the NOAA to adjust temperatures because the measured temp doesn't follow CO2 but the net adjustment to temperature follows it almost perfectly.