You are correct. It is also inappropriate for the IPCC and many, many, of the global warming studies to start from the mid 50s, where the temperatures are well on their way into a trough. ...not to mention any support whatsoever for Mann's Hockeystick.
>...not to mention any support whatsoever for Mann’s Hockeystick.
I agree about Mann (notice I wrote 50 years, not 1000 as Mann claims).
I mentioned this before. I think the graph is appropriate. You have to consider its context. The IPCC has seen the other data. The letter and its graph show recent data that contradicts the hockey stick hypothesis.