Look at the RAW TEMPERATURE DATA USED BY ALL GLOBAL TEMPERATURE AUTHORITIES BEFORE ADJUSTMENTS. They ALL decline since the year 2001. Any warming they publish is from ADJUSTMENTS they have made to the data. Note: HADCRUT4 “Raw Data” was actually recycled HADCRUT3 Adjusted Data
See tables of the data for yourself, courtesy of woodfortrees.org
http://www.woodfortrees.org/plot/hadcrut4gl/from:1987/to:2016/plot/hadcrut4gl/from:2002/to:2016/trend/plot/hadcrut3gl/from:1987/to:2016/plot/hadcrut3gl/from:2002/to:2016/trend/plot/rss/from:1987/to:2016/plot/rss/from:2002/to:2016/trend/plot/hadsst2gl/from:1987/to:2016/plot/hadsst2gl/from:2002/to:2016/trend/plot/hadcrut4gl/from:1987/to:2002/trend/plot/hadcrut3gl/from:1987/to:2002/trend/plot/hadsst2gl/from:1987/to:2002/trend/plot/rss/from:1987/to:2002/trend/plot/esrl-amo/from:2002/to:2016/trend
There are NO Warming trends unless adjustments are the reason.