Carbon Dioxide Concentrations in Atmosphere Hit Record High
Greenhouse gas concentrations in the atmosphere have reached a record high, new figures have shown. According to the World Meteorological Organization's (WMO) Gas Bulletin, average concentrations of carbon dioxide (CO2) in the atmosphere reached 407.8 parts per million in 2018, an increase on the 405.5 parts per million (ppm) recorded in 2017. The increase