In this week's programme we have a report from the Arabian Gulf off the coast of Qatar where we witness oil rig legs encrusted with life, pods of dolphins and work monitoring the arrival of migrant whale sharks to the area. David Paterson, Executive Director of the Marine Alliance for Science and Technology for Scotland is in the Shared Planet studio to explore the issues, and macro-economist and professor of Economics, Alejandro Nadal also speaks with Monty.