An international, peer-reviewed publication released each summer, the State of the Climate is the authoritative annual summary of the global climate published as a supplement to the Bulletin of the American Meteorological Society. The report, compiled by NOAA’s Center for Weather and Climate at the National Centers for Environmental Information is based on contributions from scientists from around the world. It provides a detailed update on global climate indicators, notable weather events, and other data collected by environmental monitoring stations and instruments located on land, water, ice, and in space.Here are some highlights - the first paragraph from the chapter titled "Global Climate":
Following the warmest year on record in 2014 according to most estimates, 2015 reached record warmth yet again, surpassing the previous record by more than 0.1°C. The considerable warmth, protracted strong El Niño, and new record levels of greenhouse gases provided climatological highlights for the year.And:
Atmospheric burdens of the three dominant greenhouse gases (CO2, CH 4, N2O) all continued to increase during 2015. The annual average CO2 mole fraction at Mauna Loa, Hawaii (MLO), exceeded 400 ppm, a milestone never before surpassed in the MLO record or in measurements of air trapped in ice cores for up to 800,000 years.And so on.