[Old Professer]

There are those who have considered that general warming results in increased CO2 but no real studies that I have heard of.

[elvisabel78]

There are those who have considered that general warming results in increased CO2 but no real studies that I have heard of.

To be honest, there are studies showing that levels of CO2 has risen over the past 1000 years. A sharp rise is seen in the rightmost part of the graph, suggesting that CO2 has risen significantly after the industrial revolution. graph from intergovernmental panel of climate change.

Also this graph from the National Energy Information Center (NEIC) shows an increase in CO2: