CO2 levels hit highest ever recorded, WMO says, warns of more extreme weather The Weather NetworkRecord leap in CO2 fuels fears of accelerating global heating | Greenhouse gas emissions The GuardianCO2 in the atmosphere has reached highest level in 800,000 years: WMO report CBCLevels of carbon dioxide reached new highs last year, reporting largest single year increase since 1957: WMO Times of IndiaCO2 levels hit highest ever recorded, WMO says, warning of more extreme weather Reuters
