The document discusses the progress made towards achieving the UN Sustainable Development Goals (SDGs) halfway through their 2030 deadline. It outlines several factors that have impacted SDG progress since 2019, both positively and negatively, including the COVID-19 pandemic, climate change, conflicts, technology advances, and inequality. Studies are cited showing the pandemic has slowed progress on poverty reduction and education goals. Long-term climate neutrality pledges by many countries and cities could positively impact climate goals. However, conflicts severely undermine achievement of multiple SDGs. The document also describes a science-based tool used by cities to assess interactions and synergies between SDG targets to better integrate their progress.