IUCN World Heritage Outlook

The IUCN World Heritage Outlook is the first global assessment of natural World Heritage, and our flagship for assessing all natural World Heritage sites. With three sets of data over a six-year period now available, it provides an opportunity to identify evolving trends in the global status of natural World Heritage.

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The IUCN World Heritage Outlook 3 is composed of a website and a three-yearly global report. Launched in 2014 and with two subsequent updates in 2017 and 2020, it assesses all natural natural World Heritage sites together at a given point in time, and thus complements the monitoring mechanisms under the World Heritage Convention. Hundreds of assessors and reviewers from IUCN's wide network of experts have contributed to it.

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Press release 02 Dec, 2020
Climate change now top threat to natural World Heritage – IUCN report
Gland, Switzerland, 2 December 2020 (IUCN) – Climate change is now the biggest threat to natural World Heritage, according to a report published today by IUCN (International Union for Conservation of…
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Story 18 Nov, 2020
Webinar: IUCN World Heritage Outlook 3
Updated on 14 January 2020 - On Tuesday 8 December, IUCN's World Heritage Programme held an online live event presenting fresh results from the IUCN World Heritage Outlook 3. Two sessions were held…
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Story 02 Sep, 2020
Invasive alien species may be a bigger threat to natural World Heritage than…
A new paper indicates that impacts on natural World Heritage sites from invasive alien species, such as house mice, Argentine ants and rainbow trout, may be greater than previously assessed. It…
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Story 04 Jul, 2019
Hundreds of assessors and reviewers to take part in the IUCN World Heritage…
The International Union for Conservation of Nature (IUCN) is gathering input from experts around the globe to complete a new cycle of assessments for the IUCN World Heritage Outlook 3. This flagship…

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