UNEP-WCMC 426d ago

A vast network of submarine fiber-optic telecommunications cables carries digital communications and internet traffic around the world, connecting continents, and traversing far longer distances than most other marine infrastructure. While the cables themselves are small in size (17-21mm diameter) the network is vast, totalling 1.7 million kilometres (km) in length (TeleGeography, n.d.). This global submarine network exists in many parts of the ocean environment and will continue to do so as our increasingly connected world demands greater data capacity. In a report published on 10 April 2025, UNEP-WCMC colleagues collaborated with the International Cable Protection Committee (ICPC) to explore the probable impacts of installing, operating and removing submarine cables. The report also looks at strategies to mitigate the identified risks and any negative impacts. Overall, the report's analysis found that submarine cables have a relatively small footprint in the marine environment. Globally 0.0098% of the seafloor is within 10 meters (m) of submarine cables, indicating that the global spatial footprint of submarine cables is minimal. This report is based on current evidence. Since cables are continually being laid, periodic reviews will be necessary. This webinar took place on 30 April 2025 and included the launch of the report, and a panel discussion with UNEP-WCMC and International Cable Protection Committee (ICPC) technical experts.