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Our 15th annual horizon scan identified 15 emerging issues of concern for global biodiversity conservation. A panel of 31 scientists and practitioners submitted a total of 96 topics that were ranked using a Delphi-style technique according to novelty and likelihood of impact on biodiversity conservation. The top 37 issues were discussed in person and online in September 2023 during which the issues were ranked according to the same criteria. Our 15 issues cover impacts from the development of new sources of hydrogen fuel to temperature changes in the mesopelagic ocean zone. Other emerging technologies include benchtop DNA printers and the creation of high-protein food from air. We present the results of our 15th horizon scan of novel issues that could influence biological conservation in the future. From an initial list of 96 issues, our international panel of scientists and practitioners identified 15 that we consider important for societies worldwide to track and potentially respond to. Issues are novel within conservation or represent a substantial positive or negative step-change with global or regional extents. For example, new sources of hydrogen fuel and changes in deep-sea currents may have profound impacts on marine and terrestrial ecosystems. Technological advances that may be positive include benchtop DNA printers and the industrialisation of approaches that can create high-protein food from air, potentially reducing the pressure on land for food production. [ABSTRACT FROM AUTHOR]

We present the results of our 13th annual horizon scan of issues likely to impact on biodiversity conservation. Issues are either novel within the biological conservation sector or could cause a substantial step-change in impact, either globally or regionally. Our global panel of 26 scientists and practitioners identified 15 issues that we believe to represent the highest priorities for tracking and action. Many of the issues we identified, including the impact of satellite megaconstellations and the use of long-distance wireless energy transfer, have both elements of threats and emerging opportunities. A recent state-sponsored application to commence deep-sea mining represents a significant step-change in impact. We hope that this horizon scan will increase research and policy attention on the highlighted issues. Our 13th annual horizon scan identified 15 emerging issues of concern for global biodiversity conservation. A panel of 26 scientists and practitioners submitted a total of 80 topics that were ranked using a Delphi-style technique according to the novelty and likelihood of impact on biodiversity conservation. The top 36 issues were discussed at an online meeting held in September 2021 during which issues were ranked according to the same criteria. Our 15 issues cover impacts ranging from satellite megaconstellations to deep-sea mining. Other emerging issues include floating photovoltaics, long-distance wireless energy, and ammonia as a fuel source. [ABSTRACT FROM AUTHOR]