The report was compiled by 425 scientists from 57 countries. Major findings in the 2013 report include: The climate is changing faster than at any other point in recorded history. State of the Climate in 2014 A report was released for the year of 2014. State of the Climate in 2015 A report was released in August 2016 for 2015. 2015 was the hottest year to date. Greenhouse gases were highest on record. Global upper ocean heat content was highest on record. Global sea level was highest on record. State of the Climate in 2016 Current as of report, 2016 surpassed 2015 as the warmest year in 137 years of recordkeeping. Concentrations of carbon dioxide () in the Earth's atmosphere surged by a record amount in 2016, according to the World Meteorological Organization. State of the Climate in 2017 2017 was recorded as the third warmest year on record. 2017 was the warmest non-El Niño year in the instrumental record. State of the Climate in 2018 All but one of the monthly global ocean and land temperature averages of 2018 ranked among the five warmest for their respective months, marking the year the fourth warmest year in NOAA's 139-year record. State of the Climate in 2019 See also Global warming Climate state IPCC Fifth Assessment Report National Climate Assessment References External links State of the Climate summaries BAMS State of the Climate NCDC archive of formal reports NOAA NCDC Climate Monitoring pages State of the Climate: Highlights year list Environmental reports National Oceanic and Atmospheric Administration Climatology American Meteorological Society