Potential afforestation carbon gains in (a) relatively low-production crop areas, and (b) relatively low-production rangelands. Both panels are mapped to show predicted gross carbon sink flux per year at 1-km resolution. Corrections for probable net primary productivity loss over time due to decomposition, disturbance, and aging in predicted forest stands are not included. Credit: C. Potter and M. Fladeland, NASA / Ames Research Center; S. Klooster and V. Genovese, California State University – Monterey Bay; and S. Hiatt, San Jose State University and Education Associates (reproduced from Climatic Change with permission from Springer Netherlands).