This report contains a summary of the compilation and synthesis of the fifth biennial reports submitted to the secretariat by Parties included in Annex I to the Convention. It highlights key findings in relation to quantified economy-wide emission reduction targets for 2020; achievement of those targets, including information on mitigation actions and their effects, and estimates of emission reductions and removals, the use of units from market-based mechanisms and the contribution of land use, land-use change and forestry activities; greenhouse gas emission trends and projections; and the provision of financial, technological and capacity-building support to developing country Parties.