Atmospheric Carbon Dioxide Growth Rate
Carbon Dioxide Through Time EARTH 103: Earth in the Future
Earth's atmosphere now has carbon dioxide levels unseen for 15 million years, and we might be past the point of no return
World News: Get all Latest Breaking Global News Stories, Photos & Videos
CO2 Now
USA
CO2 Levels Are Now Comparable to What They Were 4 Million Years Ago, Says NOAA : ScienceAlert
Do high levels of CO2 in the past contradict the warming effect of CO2?
Global CO2 levels reach highest levels in human history
Can 'enhanced rock weathering' help combat climate change?