Keeping our lawns green in Southern California increases greenhouse gas emissions, rather than absorbing them, a new UC Irvine study shows. 
The finding contradicts the hopeful notion that all those expanses of grass might help curb climate change by acting as a “sink” for greenhouse gas emissions, mainly carbon dioxide.
“Even though an area might be the color green, that doesn’t mean it’s necessarily good for the environment,” said Amy Townsend-Small, a UC Irvine Earth System Science researcher and lead author of the turf grass study. “The color and the concept are not the same.”











