A global assessment of sea turtle abundance trends reveals widespread increases or stability, with significant declines noted in some populations. Analysis of 61 time series spanning over 1200 years shows that 28 time series show significant upward trends, 28 show no change, and 5 show significant downward trends. Green turtles at Aldabra (Seychelles) and loggerhead turtles in Sal (Cape Verde) have seen significant increases in nesting numbers. However, declines in leatherback turtles are observed in several regions, including Oman and French Guiana. Some previously increasing populations, such as green turtles at Tortuguero (Costa Rica), have experienced declines. These findings highlight the need for continued conservation efforts, as some populations remain vulnerable despite overall positive trends. The study underscores the importance of ongoing monitoring to detect emerging threats and assess the effectiveness of conservation measures. While many sea turtle populations show recovery, declines in leatherback turtles and other species indicate that conservation efforts must be intensified to address these challenges. The study also notes that some areas lack recent data, limiting the ability to fully assess global trends. Overall, the results suggest that while many sea turtle populations are increasing or stable, conservation remains critical to ensure long-term survival.A global assessment of sea turtle abundance trends reveals widespread increases or stability, with significant declines noted in some populations. Analysis of 61 time series spanning over 1200 years shows that 28 time series show significant upward trends, 28 show no change, and 5 show significant downward trends. Green turtles at Aldabra (Seychelles) and loggerhead turtles in Sal (Cape Verde) have seen significant increases in nesting numbers. However, declines in leatherback turtles are observed in several regions, including Oman and French Guiana. Some previously increasing populations, such as green turtles at Tortuguero (Costa Rica), have experienced declines. These findings highlight the need for continued conservation efforts, as some populations remain vulnerable despite overall positive trends. The study underscores the importance of ongoing monitoring to detect emerging threats and assess the effectiveness of conservation measures. While many sea turtle populations show recovery, declines in leatherback turtles and other species indicate that conservation efforts must be intensified to address these challenges. The study also notes that some areas lack recent data, limiting the ability to fully assess global trends. Overall, the results suggest that while many sea turtle populations are increasing or stable, conservation remains critical to ensure long-term survival.