Question: what is the percentage of carbon dioxide emissions stored in the soil?
Answer: Soil Carbon and the Global Carbon Cycle Total C in terrestrial ecosystems is approximately 3170 gigatons (GT; 1 GT = 1 petagram = 1 billion metric tons). Of this amount, nearly 80% (2500 GT) is found in soil (Lal 2008). Soil carbon can be either organic (1550 GT) or inorganic carbon (950 GT).