2016 was the hottest year on record, setting a new high for the third year in a row, with scientists firmly putting the blame on human activities that drive climate change.
The final data for 2016 was released on Wednesday by the three key agencies – the UK Met Office and Nasa and Noaa in the US – and showed 16 of the 17 hottest years on record have been this century.
Direct temperature measurements stretch back to 1880, but scientific research indicates the world was last this warm about 115,000 years ago and that the planet has not experienced such high levels of carbon dioxide in the atmosphere for 4m years.
