Rio+20 (15/06/2012) – Paul Holthus, Executive Director of World Ocean Council explains the difficulties in getting cross country and cross company co-operation when it comes to tackling the oceans which many of the issues are fluid and interconnected due to the nature of the ocean.

There is, however, he says a particularly important economic argument for protecting the oceans, as well as an ecological one, with economic activities in the ocean worth between $7-11 trillion globally.