Integrated Global Greenhouse Gas Information System (IG3IS) is a common framework that allows for combination of atmospheric observations and analysis tools to improve information on emissions and uptakes of greenhouse gases (GHGs) on decision relevant scales. The applications include national-scale emission evaluation as well as urban scale and sectoral solutions. Good practices for application at different scales and sectors are created by IG3IS community. Engagement of the user community in creation of products is essential. The outputs of IG3IS can be used to support national and smaller scale mitigation policies, help identify emission reduction opportunities and track the progress towards emission reductions goals.