https://www.ncei.noaa.gov/news/reporting-state-climate-2016

Greenhouse Gases Highest on Record

Global Surface Temperature Highest on Record

Global Lower Tropospheric Temperature Highest on Record

Global Upper Ocean Heat Content Near-Record High

Global Sea Level Highest on Record

Extremes Were Observed in the Water Cycle and Precipitation

The Arctic Continued to Warm, Sea Ice Extent Remained Low

Antarctic Sees Record Low Sea Ice Extent

Global ice and snow cover decline

Tropical cyclones were well above average overall

The State of the Climate in 2016 is the 27th edition in a peer-reviewed series published annually as a special supplement to the Bulletin of the American Meteorological Society. The journal makes the full report openly available online.