The original objectives were:, a. Quantitative baseline assessment of N2O emissions from nitrogen fertiliser,, leguminous and native soil sources in traditional cotton monoculture and, rotations system on contrasting soil types., b. A soil carbon carbon inventory to establish patterns of change and net CO2, emissions across cotton-based farming systems., c. Through simulation, develop estimates of N2O and CO2 emissions across the, industry and provide the platform for future research in developing best, management practices and decision support systems that reduce greenhouse, emissions, whilst optimising yield and increasing profitability.