Oceans to Humanity: SOS
declined by some 50% over the last two decades, with the risk of crossing ecological tipping points looming larger with each passing year. The scope of such a calamity could be huge: millions of people depend on healthy oceans for their livelihood, and the economic value generated by the oceans stands at some $2.5 trillion per year. The complexity of ocean ecosystems demands a holistic strategy, not piecemeal solutions. State-centric efforts to date have been too fragmented and toothless. We urgently need an upwelling of political will—and a popular movement to demand it—if we are to act collectively to save the oceans and the common treasury of Earth.