Greenpeace International" (officially Stichting Greenpeace Council) based in Amsterdam, Netherlands, and 26 regional offices operating in 55 countries. The regional offices work largely autonomously under the supervision of Greenpeace International. The executive director of Greenpeace is elected by the board members of Greenpeace International. The current directors of Greenpeace International are Bunny McDiarmid and Jennifer Morgan and the current Chair of the Board is Ana Toni. Greenpeace has a staff of 2,400 and 15,000 volunteers globally. Each regional office is led by a regional executive director elected by the regional board of directors. The regional boards also appoint a trustee to
Greenpeace participants advocating early phase-out of ozone depleting substances in the Montreal Protocol. In the early 1990s, Greenpeace developed a CFC-free refrigerator technology, "Greenfreeze" for mass production together with the refrigerator industry. United Nations Environment Programme awarded Greenpeace for "outstanding contributions to the protection of the Earth's ozone layer" in 1997. In 2011 two fifths of the world's total production of refrigerators were based on Greenfreeze technology, with over 600 million units in use. Currently Greenpeace considers global warming to be the greatest environmental problem facing the Earth. Greenpeace calls for global greenhouse gas emissions to peak in 2015 and to