SHOULD WE USE THE RAW DATA? We are familiar with the land temperature data,?
But the adjusted data for the ocean, and thus for the total globe shows LESS warming than the raw data. That is right, raw data shows MORE warming.
This is described, thanks to Zeke Hausfather, at
http://variable-variability.blogspot.de/2015/02/homogenization-adjustments-reduce-global-warming.html.
The original paper, by British scientists is at http://www.metoffice.gov.uk/hadobs/hadsst3/part_2_figinline.pdf