The United Nations climate chief called on Monday for countries to step up action to implement existing commitments, warning that fossil fuel dependency is deepening economic instability and exposing vulnerable communities to worsening climate impacts. 

Plastic pollution is choking the ocean, but sustainable alternatives - including seaweed - remain held back by tariffs, fragmented regulations and the overwhelming market advantage enjoyed by fossil fuel-based plastics. 

The ocean covers more than 70 per cent of the planet and regulates climate, sustains biodiversity, and supports economies and cultures worldwide. It’s the foundation of life on Earth.