Marine and Polar

The ocean covers 70% of the Earth’s surface and support an extraordinarily diverse world. Only a fraction of it has been discovered so far and much of ocean life remains a mystery which IUCN experts are striving to unveil.


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  • In the spotlight:

    Ocean Warming Report

    Explaining Ocean Warming: Causes, scale, effects and consequences was released to the world’s media in September 2016 at the IUCN Congress in Hawaii.  This 460-page publication offers a comprehensive and up-to-date look at the effects of ocean warming from the perspective of major ecosystems and species groups.  Drawing on the work of over 80 scientists from 12 countries, it sets out the likely nature and scale of changes to come and also looks at the probable economic consequences ocean warming poses as well as associated risks to human health and well-being.

  • In the spotlight:

    Embark on a new expedition at sea!


    The Walters Shoal expedition is taking place between 23 April and 18 May on board the research vessel Marion Dufresne of the French Polar Institute IPEV. This expedition is a key stage of IUCN FFEM-financed on-going project on high seas conservation. The scientific partners of the project, the French Natural History Museum and the French Research Institute for Development, will explore the Walters shoal - a unique place in the high seas, 700km south of Madagascar.


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