The Impact of Climate Change on World Heritage






Climate change is increasingly damaging the U.N.’s most cherished heritage sites, a leading conservation agency warned, reporting that Australia’s Great Barrier Reef and dozens of other natural wonders are facing severe threats. 

Shrinking glaciers, increasing fires, floods and droughts, and the bleaching of coral reefs are among the troubles facing 83 of the 252 World Heritage Sites listed by UNESCO, the U.N.'s cultural agency. 
Sixteen World Heritage sites have deteriorated since the last World Heritage Outlook was released three years ago, while only eight improved, said the International Union for Conservation of Nature, which is made up of governments and civil society groups and advises UNESCO on natural threats to those sites. 
Climate change is wreaking on natural World Heritage, from shrinking glaciers to coral bleaching to increasingly frequent and severe fires and droughts. 
The report says that the Great Barrier Reef — where ocean warming, acidification and extreme weather have added to the coral decline and shrinking marine species populations — was one of four sites in Australia under “very high” threat. 

The islands of protected areas in the Gulf of California in Mexico have also entered the “critical” category in the listing. Spain’s Garajonay National Park, Olympic National Park in the United States, and Mexico’s Monarch Butterfly Biosphere Reserve are among those under “very high” threat, the new report said. 
It said while 63% of the heritage sites are classified as “good” or “good with some concerns,” 30% are of “significant concern” and 7% are in “critical” shape. 

Since the group’s previous two reports, climate change has eclipsed “invasive alien species” — such as when foreign rodents, fish or plants are transplanted, accidentally or not, to new environments — as the most potent threat against such sites. 



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