Climate Scientists Say We Should Embrace Higher Co2 Levels - Web in the scenarios we assessed, limiting warming to around 1.5°c (2.7°f) requires global greenhouse gas emissions. Web carbon dioxide in the atmosphere has now reached the highest level in at least the past 2 million years.
Web in the scenarios we assessed, limiting warming to around 1.5°c (2.7°f) requires global greenhouse gas emissions. Web carbon dioxide in the atmosphere has now reached the highest level in at least the past 2 million years.