Dude, do you really think natural fluctuations produce 40 + year warming trends. (realclimate.org)
Similarly, many people blame the recent 50 year warming trend on various «climate cycles» but don't explain the physics causing Earth to gain energy. (skepticalscience.com)
When the phase of natural variability is taken into account, the model 15 - year warming trends in CMIP5 projections well estimate the observed trends for all 15 - year periods over the past half - century. (skepticalscience.com)