United Nations Secretary-General António Guterres delivered another bleak warning about the climate emergency on December 2. He told the 197 country leaders assembled that global average levels of carbon dioxide have now gone over what used to be considered an “unthinkable global tipping point”.
“Global average levels of carbon dioxide reached 407.8 parts per million in 2018”, Guterres told the 25th Conference of the Parties to the United Nations Framework Convention on Climate Change, also known as COP25, in Madrid.
“Not long ago, 400 parts per million was seen as an unthinkable tipping point. We are well over it.”