4 ms·
The (strong?) electromagnetic fields from these cables must have some impact on marine systems, and I bet we don't well understand what that impact will be. Ye
by michaelteter 4y ago
The (strong?) electromagnetic fields from these cables must have some impact on marine systems, and I bet we don't well understand what that impact will be.
Years or decades later we may trace some significant change in marine systems back to this source, and then we may decide that the cost was much greater than the benefit. We have a habit of making decisions for short term gain and intentionally downplaying the potential risks...
Even short term, I wouldn't be surprised if Portugal felt the impact within one decade, as they are very dependent on fishing along their coast.
- mikewarot 4y agoIf you have a coaxial cable, with the shield at ground potential, there are effectively no external fields, as they cancel out. There are obviously going to be some tangential impacts, but submarine cables have been around for more than a century.
- ourlordcaffeine 4y agoI've heard that some species of crab get dazzled by the magnetic field around DC cables
- michaelteter 4y agoYes I don't remember the article, but I think it appeared here on HN. There was a marked change in sea life behavior because of some undersea cable. Now I'm imagining this on a much bigger scale since it would be a power delivery cable...