Plastic pollution poses a major threat to ocean life, and it is one of the largest threats that oceans face. Every year millions of tonnes of plastic flow from the river into the sea polluting the oceanic ecosystem. Scientists have found that ten rivers—two in Africa and the rest in Asia—discharge 90% of all plastic marine debris. The Yangtze alone carries 1.5m tonnes a year.
If the current trend continues then by 2050 there could be more plastic in the world’s waters than fish, measured by weight. Such numbers frighten people and change their behavior. The Economist explains how to stop plastic from getting into the ocean.