Science diplomacy and the 5th International Polar Year (IPY-5): planetary considerations across centuries

The 5th International Polar Year (IPY-5) in 2032-2033 represents an important next step in the legacy of the oldest continuous climate research program created by humanity, which intentionally began during a Solar Maximum with IPY-1 in 1882-1883, following the Little Ice Age. Current IPY-5 planning by the International Arctic Science Committee (IASC) and Scientific Committee on Antarctic Research (SCAR) is "From IPY-4 to IPY-5" with scope since 2007-2008, considering relevant large-scale polar process, international activities and UN decades. Additionally, there are essential features to incorporate into IPY-5 planning with Indigenous knowledge as well as next-generation leadership along with international science connections across the United Nations, involving core integration of data system and Earth-Sun system research, which accelerated with the International Geophysical Year (IGY) in 1957-1958 that was renamed from IPY-3. As memorialized in the 1959 Antarctic Treaty: "the International Geophysical Year accords with the interests of science and the progress of all mankind." Importantly, at the height of the Cold War with "forever" legacy, the 1959 Antarctic Treaty became the first nuclear arms agreement, applying science diplomacy among allies and adversaries alike based on "matters of common interest." Recognizing current challenges to enable inclusive dialogues - especially in the Arctic - planning for IPY-5 is far enough into the future to be imaginative and hopeful but close enough to be practical, especially to produce synergistic outcomes that inspire and empower next-generation leaders across the International Decade of Sciences for Sustainable Development from 2024 to 2033. Planning "From IPY-3 to IPY-5" - this invited Cambridge Prisms Perspective extends and amplifies the IASC-SCAR concept with its visionary principles - "striving for holistic, systemic, transdisciplinary research approaches" - for the benefit of all on Earth across generations.