The article highlights the accelerating loss of seagrass meadows globally, which are critical coastal ecosystems providing essential ecosystem services. Since 1980, seagrass areas have declined at a rate of 110 km² per year, with 29% of known seagrass extent lost since 1879. The decline has accelerated from 0.9% per year before 1940 to 7% per year since 1990. Seagrass loss rates are comparable to those of mangroves, coral reefs, and tropical rainforests, making them among the most threatened ecosystems. The primary causes of seagrass loss include coastal development, water quality degradation, and climate change. The authors emphasize the need for integrated management approaches to protect and restore seagrass meadows, highlighting successful examples of improved water quality leading to seagrass recovery. The report underscores the ecological and economic significance of seagrasses and calls for urgent action to address the global crisis.The article highlights the accelerating loss of seagrass meadows globally, which are critical coastal ecosystems providing essential ecosystem services. Since 1980, seagrass areas have declined at a rate of 110 km² per year, with 29% of known seagrass extent lost since 1879. The decline has accelerated from 0.9% per year before 1940 to 7% per year since 1990. Seagrass loss rates are comparable to those of mangroves, coral reefs, and tropical rainforests, making them among the most threatened ecosystems. The primary causes of seagrass loss include coastal development, water quality degradation, and climate change. The authors emphasize the need for integrated management approaches to protect and restore seagrass meadows, highlighting successful examples of improved water quality leading to seagrass recovery. The report underscores the ecological and economic significance of seagrasses and calls for urgent action to address the global crisis.