In May 2023, UNDESA and UNFCCC Secretariat co-convened the Expert Group on Climate and SDG Synergy. The Group consists of 14 renowned experts from diverse thematic and geographic backgrounds who were given the task of developing the First Global Report on Climate and SDG Synergies. This report demonstrates that aggressively acting on climate and development in an integrated and synergistic way is an important opportunity to achieve the course correction the UN Secretary- General has called for. The report is designed to provide a broad overview of available data and evidence, insights from experts on the frontlines, and recommendations for enhancing synergistic action across the 2030 Agenda and the SDGs. This first edition will form the basis for future iterations, which will entail a wider scope of sectors, and thematic areas and deep dives on specific issues pertaining to strengthening and operationalizing synergic climate and SDG actions at all levels.