WMO: Five hottest years on record have occurred since 2011
New data released by the World Meteorological Organisation (WMO) shows that the five years from 2011 to 2015 were the warmest on record.
The report, published at global climate talks in Morocco, strongly links human activities to rising temperatures.
It says that some studies found the the burning of fossil fuels had increased the probability of extreme heat by 10 times or more.
The authors say that 2016 will likely break the record for warmest year.