2014 confirmed as warmest on record
2014 was the warmest year on record, with global temperatures 0.68C (1.24F) above the long-term average, US government scientists have said.
The results mean that 14 of the 15 warmest years on record have occurred since the turn of the century.
The analysis was published on Friday by Nasa and Noaa researchers.
Last month, the World Meteorological Organization released provisional figures that predicted the past 12 months were set to be record breakers.
The long-term global average temperature is calculated from data collected between 1951 and 1980.