Cows in Mato Grosso, Brazil (IMAGE) Marine Biological Laboratory Caption Gillian Galford and her colleagues considered whether using cleared land for pasture or crops would result in higher regional greenhouse gas emissions. Credit Gillian Galford Usage Restrictions Please use with proper credit. License Licensed content 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.