http://www.gpa.unep.org/index.php/global-partnership-on-marine-litter

Global Partnership on Marine Litter

Under the GPA, land-based marine litter has been highlighted in the
‘Manila Declaration’ (Third Intergovernmental Review of the GPA in
January 2012) as a priority source category for 2012-2016 giving UNEP a
strong mandate to continue its work on this issue over the next 5 years.
Representatives of 64 Governments and the European Commission emphasized
the relevance of the Honolulu Commitment endorsed at the Fifth
International Marine Debris Conference (5IMDC), and the Honolulu
Strategy – a global framework for prevention and management of marine
debris. The Manila Declaration also recommended the establishment of a
Global Partnership on Marine Litter (GPML) which was launched 18 June
2012 - UNEP is developing it further in collaboration with relevant
partners and will function as the Secretariat of the GPML.