Carbon dioxide levels highest in human history

The amount of heat-trapping carbon dioxide in the atmosphere has shot past a key milestone -- more than 50 per cent higher than pre-industrial times -- and is at levels not seen since millions of years ago when Earth was a hothouse ocean-inundated planet, federal scientists announced Friday.

Earth's CO2 hits highest recorded level in human history - exceeding 420 parts per million

Ross Dawson on X: A highly predictable annual headline: CO2 levels reach record level Every year for decades now and well into the future, sometime between April and June, a new highest-in-human-history

High carbon dioxide levels set a record

CO2 Levels: Current & Historic Atmospheric Carbon Dioxide / Global Temperature Graph & Widget

Carbon dioxide levels highest in human history - Chicago Sun-Times

Random thoughts, Page 523

CO2 Past

Highest ever readings of atmospheric carbon dioxide in human history recorded

Carbon Dioxide Vital Signs – Climate Change: Vital Signs of the Planet