Marine heatwaves are cooking our ocean ecosystems – and will only become more common

Marine heatwaves, driven by abnormally warm ocean waters lasting days or months, are devastating coral, seagrass and fish worldwide. As climate change raises the ocean’s baseline temperature, these events are becoming longer, more frequent and severe, threatening ecosystems.

Canva, Pixabay, The Conversation, CC BY-NC-SA You may have heard reports of fish die-offs or seen photos of hauntingly bleached coral. Those are just two signs a marine heatwave has swept through the sea. Marine heatwaves happen when the ocean remains abnormally hot for an…