This study tracked GHG emissions arising from croplands and found drained peatlands (35%), rice paddies (35%) and synthetic fertilizer (23%) as the primary contributors. Four crops—rice, maize, oil palm and wheat—accounted for 67% of total emissions.
Spatially explicit cropland greenhouse gas emission data are essential for identifying emission hotspots and guiding sustainable mitigation strategies.
Here we develop high-resolution (5 arcmin) global maps of cropland emissions across 46 crop classes in 2020 by integrating sectoral datasets on synthetic fertilizer, manure, crop residue, in-field burning, rice cultivation and cultivated drained peatlands.