re: News: 2012 Highlight (14/6/12) UCL Resour... Interesting article on undersea P mining.
See link:
http://cdn.harmonyapp.com/assets/50905fa9dabe9d40a4013f28/BoskalisOffshoreMiningUMI2012_ACST.pdf
This gives some insight into how process is carried out?
As long as Environmental impacts are mitigated Sandpiper looks very likely.