Chambers et al.’s 2016 report assess the sequestration potential of US croplands and grasslands in the context of the 4 Per Thousand initiative, a French effort to enhance the carbon stock on a large portion of the world’s managed soils by an average annual increase of 0.4%. On assessing US potential, the report concluded that the expansion of existing USDA conservation practices could lead to the sequestration of 277 million metric tons CO2-e annually by 2050, effectively cutting net agricultural GHGs in half.