UN warns: Global CO2 levels hit record high, fueling extreme weather

Heat-trapping carbon dioxide levels in the atmosphere jumped by the highest amount on record last year, soaring to a level not seen in human civilisation and “turbo-charging” the Earth’s climate and causing more extreme weather, the United Nations weather agency said Wednesday.

The World Meteorological Organisation said in its latest bulletin on greenhouse gases, an annual study released ahead of the U.N.’s annual climate…