The authors emphasize the importance of extending and reinforcing the Sustainable Development Goals (SDGs) to 2050, rather than abandoning them. They argue that the SDGs, while widely endorsed, are facing significant challenges due to economic slowdowns, insufficient financing, and fragmented strategies. The authors propose setting interim targets for 2030 and 2040, with final targets for 2050, aligned with scientific evidence and maintaining high but achievable ambitions. Key priorities include: 1. **Extending and Bolstering the Framework**: Conduct wide consultations, ensure clarity and measurability of targets, and incorporate cutting-edge technologies like AI. 2. **Ensuring a Healthy Planet**: Set pathways to return Earth to a safe operating zone, reduce global CO2 emissions to net zero by 2040-2050, and halt biodiversity loss. 3. **Enhancing Planning and Cooperation**: Extend SDG policy pathways to mid-century, strengthen regional cooperation, and improve cross-border impact assessments. 4. **Addressing Investment and Finance**: Scale up public investment, reform the global financial architecture, and ensure long-term, low-interest financing for low-income countries. 5. **Adopting Mission-Based Approaches**: Frame SDG fulfillment through well-defined missions, such as achieving net-zero emissions or closing the digital divide. 6. **Fostering Change and Accountability**: Strengthen accountability mechanisms, provide financial support to vulnerable nations, and promote peer review and recognition of best performers. The authors recommend that UN member states adopt an updated SDG framework by 2026 and prepare comprehensive voluntary national reviews by 2027. They also suggest establishing a global governance mechanism for planetary health, adopting the SDG Stimulus program, and reforming the global financial architecture.The authors emphasize the importance of extending and reinforcing the Sustainable Development Goals (SDGs) to 2050, rather than abandoning them. They argue that the SDGs, while widely endorsed, are facing significant challenges due to economic slowdowns, insufficient financing, and fragmented strategies. The authors propose setting interim targets for 2030 and 2040, with final targets for 2050, aligned with scientific evidence and maintaining high but achievable ambitions. Key priorities include: 1. **Extending and Bolstering the Framework**: Conduct wide consultations, ensure clarity and measurability of targets, and incorporate cutting-edge technologies like AI. 2. **Ensuring a Healthy Planet**: Set pathways to return Earth to a safe operating zone, reduce global CO2 emissions to net zero by 2040-2050, and halt biodiversity loss. 3. **Enhancing Planning and Cooperation**: Extend SDG policy pathways to mid-century, strengthen regional cooperation, and improve cross-border impact assessments. 4. **Addressing Investment and Finance**: Scale up public investment, reform the global financial architecture, and ensure long-term, low-interest financing for low-income countries. 5. **Adopting Mission-Based Approaches**: Frame SDG fulfillment through well-defined missions, such as achieving net-zero emissions or closing the digital divide. 6. **Fostering Change and Accountability**: Strengthen accountability mechanisms, provide financial support to vulnerable nations, and promote peer review and recognition of best performers. The authors recommend that UN member states adopt an updated SDG framework by 2026 and prepare comprehensive voluntary national reviews by 2027. They also suggest establishing a global governance mechanism for planetary health, adopting the SDG Stimulus program, and reforming the global financial architecture.