ITU Blog: Green cables for climate monitoring and disaster warning

Continents are connected by information superhighways of fibre-optic submarine cables that span our oceans to provide the backbone of the global telecommunications system. The first submarine communication cable was deployed across the English Channel in 1850, and since, more than a million kilometres of cable have been laid on the ocean floor, covering a significant portion of the globe.

In recent years, the extraordinary breadth and capacity of this submarine network has motivated the initiation of an ambitious new project: that of equipping submarine communications cables with climate and hazard monitoring sensors to create a global real-time ocean observation network. Once laid, this network will be capable of providing earthquake and tsunami warnings as well as data on ocean climate change and circulation.

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