Ten Crises Facing Our Oceans: From "Your Dying Seas" by Chris Wood

Chris Wood outlines ten interconnected threats devastating marine ecosystems:

1. Marine Biodiversity Collapse: Overfishing, pollution, habitat loss driving extinctions.
2. Ocean Acidification: CO₂ absorption lowers pH, dissolving calcium carbonate shells (corals, mollusks, plankton).
3. Coral Bleaching: Heat stress expels symbiotic algae → starvation, death of reefs.
4. Hypoxic Dead Zones: Nutrient runoff → algal blooms → decomposition consumes oxygen → lifeless zones (e.g., Gulf of Mexico, Baltic).
5. Food Web Disruption: Loss of apex predators (sharks, tuna) cascades through trophic levels.
6. Microplastic Pollution: Ingested by all trophic levels; vectors for toxins; ubiquitous.
7. Habitat Destruction: Coastal development, dredging, trawling erase mangroves, seagrass, reefs.
8. Marine Disease Surge: Warmth, crowding (aquaculture), pollution fuel epidemics.
9. Human Livelihood Impacts: Fishery collapses devastate coastal communities, food security.
10. Climate Feedback Loops: Lost blue carbon (mangroves, marshes, seagrass) → less CO₂ uptake → more warming.

These are not isolated—they amplify each other. Solutions require global coordination: emissions cuts, sustainable fisheries, plastic treaties, 30×30 protection, blue economy transition.