By Kate Abnett and Gabrielle Tétrault-Farber
BRUSSELS/GENEVA (Reuters) -Each of the past 12 months ranked as the warmest on record in year-on-year comparisons, the EU’s climate change monitoring service said on Wednesday, as U.N. Secretary-General António Guterres called for urgent action to avert “climate hell”.
The average global temperature for the 12-month period to the end of May was 1.63 degrees Celsius (2.9 degrees Fahrenheit) above the pre-industrial average – making it the warmest such period since record-keeping began in 1940, the Copernicus Climate Change Service said.
This 12-month average does not mean that the world has yet surpassed the 1.5 C (2.7 F) global warming threshold, which describes a temperature average over…
