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Climate change ‘damaging more World Heritage sites’

Published: (Updated: ) in Australian News by .

Australia’s Great Barrier Reef and dozens of other natural wonders are facing severe threats.

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

Climate change that has lead to 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 UN's cultural agency.

Read more: Great Barrier Reef lost half its coral over past three decades

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, made up of governments and civil society groups and advises UNESCO on natural threats to those sites.

Great Barrier Reef

"Natural World Heritage sites are amongst the world's most precious places, and we owe it to future generations to protect them," IUCN Director-General Bruno Oberle said. "Climate change is wreaking (havoc) on natural World Heritage, from shrinking glaciers to coral bleaching to increasingly frequent and severe fires and droughts."

Read more: Fresh hope for the Great Barrier Reef after 'game-changing' technique is deployed on damaged coral

The report says the Great Barrier Reef, where ocean warming, acidification and extreme weather have added to the coral decline and shrinking marine species populations, were one of four sites in Australia under "very high" threat.

Researchers check corals for signs of spawning.

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.

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It said while 63 per cent of the heritage sites are classified as "good" or "good with some concerns," 30 per cent are of "significant concern" and 7 per cent are in "critical" shape.

Read more: Methane discharge 'cracking permafrost' in Arctic

In a difference from the previous two IUCN 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.

Human activities like tourism, hunting and fishing, and livestock grazing have also had an impact.

Photos of Great Barrier Reef affected by mass bleaching in 2016

– Reported with Associated Press

Source: 9News https://www.9news.com.au/world/un-report-climate-change-damaging-more-world-heritage-sites/daf00c38-2526-4cad-8c0b-7d2f65809d86

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