Biochar raises soil health and reduces greenhouse gas emissions in arid lands
Said Al‐Ismaily·D. Blackburn·Fatima Ba Abood·Rattan Lal·Bashair Al Maghatasi·Yakov Kuzyakov·Jon Chorover
Biochar is increasingly recognized as a multifunctional amendment capable of restoring soil health and mitigating greenhouse gas (GHG) emissions, particularly in arid and semi-arid regions, where fragile soils, high salinity, and erratic moisture regimes exacerbate climate vulnerability. Despite the growing global interest, only ~3% of biochar studies target arid lands, leaving a critical knowledge gap in understanding its mechanisms under harsh edaphoclimatic conditions. This review synthesizes