Predicted Warming from CO2 Effects on Plants (image) Carnegie Institution for Science Share Print E-Mail Caption Map of globe shows percentage of predicted warming due to the direct effect of carbon dioxide on plants. Carbon dioxide warms the Earth because it is a greenhouse gas in the atmosphere, but it also causes plants to provide less evaporative cooling. A study by Long Cao and Ken Caldeira of the Carnegie Institution for Science finds that in some places (darkest orange) over 25 percent of the warming from increased atmospheric carbon dioxide is a result of decreased evaporative cooling by plants. Credit Carnegie Institution Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.