THE SYMBIOTIC RELATIONSHIPS OF SUBMARINE AND TERRESTRIAL CABLES:
BY JORGE LOZANO
The Symbiotic Relationship of Submarine and Terrestrial Cables: A Climate Change Perspective
The history of communication technology showcases human ingenuity and adaptability. For over 170 years, submarine and terrestrial cables have facilitated global connectivity, transforming our interactions. This article explores their intertwined history and implications for climate change.
In 1858, the first telegraph message was transmitted between Newfoundland and Valentia Bay, Ireland, symbolized by the engraving “THE LAYING OF THE CABLE—JOHN AND JONATHAN JOINING HANDS.” This historic connection, represented by the ships “NIAGARA” and “AGAMEMNON,” marked a significant milestone in global communication.
Historical Overview
The establishment of submarine cables in the 19th century, alongside terrestrial cables, has formed the backbone of our interconnected world. The Internet connectivity map by the International Telecommunication Union (ITU) vividly illustrates this network. Despite the economic challenges in the marine sector, communication technology holds potential solutions to mitigate climate impacts.
Climate Change and Communication Technology
The ITU's Infrastructure Connectivity Map highlights the extensive terrestrial fiber optic networks, totaling 16.41 million kilometers, and submarine cables, accounting for 1.4 million kilometers. This 1:11.71 ratio underscores the need for synergy between these infrastructures.
Submarine cables are vital for bridging continents, while terrestrial networks dominate land connectivity. The ITU and Infrapedia Connectivity Maps help identify local ISP networks, enhancing the understanding of service quality and the intricate connections supporting our digital world.
Disaster Connectivity and Environmental Impact
The ITU Disaster Connectivity platform assists first responders in assessing telecommunications infrastructure before and after disasters. Focusing on the Amazon Basin, this platform covers 7.8 million km² across eight countries, highlighting the critical role of both terrestrial and subfluvial fiber networks in environmental and disaster management.
By recognizing the essential relationship between submarine and terrestrial cables, we can better appreciate their role in global connectivity and their potential in addressing climate change challenges.
To read the complete article, check out Issue 135 of the Sub Tel Forum Magazine here
