There's actually been global cooling

http://dailycaller.com/2015/06/15/americas-most-advanced-climate-station-data-shows-us-in-a-10-year-cooling-trend/

Data compiled from these stations shows a slight cooling trend over the U.S. for the past decade.  “Newly corrected and updated global surface temperature data from NOAA’s [National Centers for Environmental Information] do not support the notion of a global warming ‘hiatus’,” NOAA scientists wrote in their study.

Quick!  Needs more seasonal adjustments!