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1. Degrading Data to Save the Planet

   https://doi.org/10.1145/3593856.3595896  

   Zuck, Aviad; Porter, Donald; Tsafrir, Dan (June 2023, Proceedings of the 19th Workshop on Hot Topics in Operating Systems)

   Storage capacity demand is projected to grow exponentially in the coming decade and so will its contribution to the overall carbon footprint of computing devices. In recent years, cloud providers and device vendors have substantially reduced their carbon impact through improved power consumption and product distribution. However, by 2030, the manufacturing of flash-based storage devices will account for 1.7% of carbon emissions in the world. Therefore, reducing production-related carbon emissions of storage is key to sustainability in computing devices. We present Sustainability-Oriented Storage (SOS), a new host-device co-design for personal storage devices, which opportunistically improves storage sustainability by: (1) targeting widely-produced flash-based personal storage devices; (2) reducing hardware production through optimizing bit density in existing materials, up to 50%; and (3) exploiting an underutilized gap between the effective lifespan of personal devices and longer lifespan of their underlying flash. SOS automatically stores low-priority files, occupying most personal storage capacities, on high-density flash memories, currently designated for nearline storage. To avoid data loss, low-priority files are allowed to slightly degrade in quality over time. Switching to high-density memories, which maximize production material utilization, reduces the overall carbon footprint of personal storage devices. 

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2. Powering the planet with solar fuel

   https://doi.org/10.1038/nchem.141  

   Gray, Harry B. (April 2009, Nature Chemistry)
3. Comparative phylogeography of the ocean planet

   https://doi.org/10.1073/pnas.1602404113  

   Bowen, Brian W.; Gaither, Michelle R.; DiBattista, Joseph D.; Iacchei, Matthew; Andrews, Kimberly R.; Grant, W. Stewart; Toonen, Robert J.; Briggs, John C. (July 2016, Proceedings of the National Academy of Sciences)
4. Planet–Planet Secular Migration Predicts a Stellar Obliquity–Period Anticorrelation

   https://doi.org/10.3847/2041-8213/ae8dbc  

   Bhaskar, Hareesh Gautham; Petrovich, Cristobal; Muñoz, Diego J (August 2026, The Astrophysical Journal Letters)

   Stellar obliquities provide a fossil record of hot-Jupiter (HJ) migration. An emerging observational trend in single-star systems is that strongly misaligned HJs are largely confined to short orbital periods, while longer-period HJs are preferentially aligned. This pattern cannot be explained by tidal dissipation in the star and may instead preserve clues to the migration pathway. We show that secular high-eccentricity migration driven by a distant planetary companion naturally produces such an obliquity–period correlation. In our simulations, the shortest-period HJs tend to be produced by the von Zeipel–Lidov–Kozai mechanism driven by highly inclined companions, which results in a broad range of final stellar obliquities. The longest-period HJs, on the other hand, are produced over longer timescales by coplanar high-eccentricity migration, which preserves low obliquities. The transition between these two limits is not abrupt, with intermediate-period HJs displaying a moderate range of obliquities. According to this interpretation, we predict that the shortest-period HJs should have distant planetary companions with broadly distributed mutual inclinations, whereas the companions of longer-period HJs should reside in nearly coplanar orbits. Upcoming Gaia astrometric constraints will provide a key test of this picture. 

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5. GPI 2.0: upgrading the Gemini Planet Imager

   https://doi.org/10.1117/12.2562578  

   Chilcote, Jeffrey K.; Konopacky, Quinn M.; De Rosa, Robert J.; Hamper, Randall; Macintosh, Bruce A.; Marois, Christian; Perrin, Marshall D.; Savransky, Dmitry; Soummer, Rémi; Véran, Jean-Pierre; et al (December 2020, GPI 2.0: upgrading the Gemini Planet Imager)

   Evans, Christopher J.; Bryant, Julia J.; Motohara, Kentaro (Ed.)