As recently as 2014 higher temperatures for the entire year were measured. At the same time, the 2011-15 period is the warmest on record, the TASR newswire reported.
The persisting high temperatures are due to a combination of global warming and the strong El Niño phenomenon, according to the WMO. The effects are expected to be observed in 2016 as well.
6. Jan 2016 at 6:52 | Compiled by Spectator staff