Some non-environmental reasons for wanting to do this: http://www.alexwg.org/publications/PhysRevE_82-056104.pdf http://www.alexwg.org/publications/PhysRevE_82

Some non-environmental reasons for wanting to do this: http://www.alexwg.org/publications/PhysRevE_82-056104.pdf http://www.alexwg.org/publications/PhysRevE_82-056104.pdf > Optimal intermediate trading node locations for all pairs of 52 major securities exchanges, calculated using Eq. 9 as midpoints weighted by turnover velocity... While some nodes are in regions with dense fiber-optic networks, many others are in the ocean or other sparsely connected regions.