A new investigation by Planet Tracker warns that climate change and unsustainable fishing practices in Indonesian waters will severely impact tuna profits unless companies take urgent action. The industrial tuna sector in Indonesia, the world's largest producer, is still lacking sustainability and faces challenges such as bycatch and overfishing. Implementing nature-positive measures and improving traceability and transparency can offset the negative impact of climate change and safeguard long-term profits for companies in the industry, according to Planet Tracker.