GDAE (2017): Hope Below Our Feet. Soil as a Climate Solution. With assistance of Anne-Marie Codur, Seth Itzkan, William Moomaw, Karl Thidemann, Jonathan Harris. Global Development and Environment Institute (Climate Policy Briefing, 4).
„Soils hold about three times more carbon than the atmosphere, and an increase in soil carbon content worldwide could close the “emissions gap” between carbon dioxide reductions pledged at the Paris Agreement of 2015 and those deemed necessary to limit warming to 2oC or less by 2100. To meet this challenge, several international efforts to build soil carbon have been launched, with similar measures underway in the United States.“