Former senator says marine protected area urgently needed to safeguard the Ross Sea from overfishing.
US Secretary of State John Kerry has backed a US-New Zealand proposal for the world's largest marine reserve in the Antarctic at a special screening of a New Zealand film.
Mr Kerry called for the creation of the huge marine protected area (MPA) in the Ross Sea at the National Geographic Museum in Washington, where Christchurch film-maker Peter Young's documentary The Last Ocean was shown.
He spoke alongside New Zealand Ambassador to the US Mike Moore and Australian Foreign Minister Bob Carr at the event, organised by Pew Environment Group.
"We're proud to join with New Zealand and Australia, two countries that have an extraordinary understanding of the sea and commitment to protecting it and who have been great stewards."