NITROUS OXIDE EMISSIONS ARE NOTORIOUSLY VARIABLE - THROUGH TIME, ACROSS SPACE, AND WITH MANAGEMENT AND ENVIRONMENTAL CONDITIONS. SAMPLING AND DATA ANALYSIS HAVE THEREFORE PROVEN DIFFICULT AND TECHNIQUES USED FOR GAP FILLING MISSING DATA AND EXTRAPOLATING MEASUREMENTS ARE INADEQUATE. WE PROPOSE TO CREATE THE FIRST GLOBAL N2O DATABASE IN COLLABORATION WITH RESEARCHERS FROM AROUND THE WORLD. THE DESIGN AND IMPLEMENTATION PROCEDURES FOR THIS NEW, PUBLICALLY AVAILABLE DATABASE WILL BE BASED ON STAKEHOLDER FEEDBACK PROVIDED A THE PLANNING WORKSHOP HELD IN YEAR ONE. THE DATABASE WILL THEN BE USED FOR STATISTICAL ANALYSIS OF AUTO CHAMBER DATA IN ORDER TO DEVELOP GAP-FILLING METHODS AND TO IMPROVE EXTRAPOLATION TECHNIQUES FOR MAKING ANNUAL ESTIMATES OF ANNUAL N2O EMISSIONS. ANALYSIS WILL BE CONDUCTED ON A CALIBRATION DATA SET AND THEN VALIDATED AGAINST INDEPENDENT DATA AND AGAINST STATIC CHAMBER MEASUREMENTS. RESULTS FROM THESE ANALYSES WILL BE DISSEMINATED AT A WORKSHOP IN THE FINAL YEAR AS WELL AS THROUGH SCIENTIFIC MEETINGS AND WORKSHOPS. INTENSIFICATION OF CROP PRODUCTION, AT LEAST IN PART THROUGH INCREASED FERTILIZER INPUTS, IS ESSENTIAL FOR FEEDING A GROWING AND HUNGRY PLANET. INCREASING YIELDS WHILE REDUCING N2O AND OTHER N LOSSES IS A VITAL STEP IN INCREASING THE EFFICIENCY OF REACTIVE NITROGEN WITHIN AGRICULTURE AND SUSTAINABLY INTENSIFYING AGRICULTURE. THE DATABASE WE DEVELOP WILL BE DESIGNED IN ORDER TO SUSTAIN ITSELF INTO THE FUTURE, WITH RESULTS FROM THIS PROJECT LEADING TO ADVANCED METHODOLOGY FOR N2O EMISSIONS DATA AND IMPROVED ANALYSIS TECHNIQUES. THE DATABASE AND RESULTING WORK WILL LEAD TO NEW PATHWAYS FOR FUTURE RESEARCH AROUND REDUCING RELEASE OF REACTIVE N AND IMPROVING SOIL HEALTH.