CO2 Past
Do high levels of CO2 in the past contradict the warming effect of CO2?
CO2 has been higher in the past
Graphic: The relentless rise of carbon dioxide – Climate Change: Vital Signs of the Planet
Modelling the long-term carbon cycle, atmospheric CO2, and Earth surface temperature from late Neoproterozoic to present day - ScienceDirect
TecEco - Geomimicry
Historical trends in carbon dioxide concentrations and temperature, on a geological and recent time scale | GRID-Arendal
Temperature (T) and atmospheric carbon dioxide (CO2) concentration... | Download Scientific Diagram
Using plant stomata to determine carbon dioxide concentrations over the past 15,000 years
Atmospheric carbon dioxide levels for the last 500 million years | PNAS
Atmospheric carbon dioxide levels for the last 500 million years | PNAS
CO2 Past
Climate during the Carboniferous Period
Carbon Dioxide Through Time | EARTH 103: Earth in the Future
CO2: Past, Present, & Future – Time Scavengers
What geology can teach us about climate change: How to make an ice age | Adventures in geology - Karsten Eig
CO2: Past, Present, & Future – Time Scavengers
Using plant stomata to determine carbon dioxide concentrations over the past 15,000 years
Geological Society of London Scientific Statement: what the geological record tells us about our present and future climate | Journal of the Geological Society
Relationship between sea level and climate forcing by CO2 on geological timescales | PNAS
Future climate forcing potentially without precedent in the last 420 million years | Nature Communications
