I'm laughing at the idea that Mann found better data. Did he really?
As I don't speak 'tard, I have no idea what you're babbling about. Best I can tell, your 'tard conspiracy theory declares that Mann, who wasn't working with the IPCC until 1996, was forging a new graph in 1992.
Anyways, don't blame yourselves too much. All the denialists here have fallen for that stupid scam, given that the CultOfMcIntyre basically requires its acolytes to recite it 6 times a day as they bow and face WUWT on the computer screen. For example, a few here have shown us this sacred cult icon:
So why is it bogus?
First, because the graph they label as "1990-2001" was actually discarded by the IPCC by 1992. Whoever fudged the labels on that plot made up fake dates so they could lie about how the IPCC supposedly kept the 1965 image around as gospel truth through several editions until 2001. They didn't. In the first report in 1990, that was the only research around, so the IPCC used it. By the next edition, the 1992 supplementary report, the IPCC knew it was wildly inaccurate and hopelessly out of date, so they worked hard to replace it with good data. If someone thinks that's a conspiracy, then they're too much of a cult rube to ever be taken seriously.
Second, that 1965 graph is also for northern europe only, but the denialists say it's for the whole world.
This appears to be the origin of the scam graph, the fine scammers at WUWT. Given that the correct labels and explanations are on the wiki page they copied the original from, they can't use ignorance as an excuse. They just lied.
When the IPCC ?disappeared? the Medieval Warm Period | Watts Up With That?
So, if you ever posted that image, or if you fell for it, you should be asking yourself some tough questions. Your leaders have been lying their asses off to you, and as a result you lied about honest scientists. You can either admit your errors, or you can go full blown cultist and double down on the big lie, which would make you from now on an active participant in outright lying. Ignorance could excuse you all before, but not any longer.
(SSDD, I'm talking about you. You fell for the scam, posted the bogus graph, pushed it hard, and insulted anyone who didn't fall for it. You got some splainin' to do.)