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Mass tourism and climate change 'threaten' heritage sites

UNESCO report warns of impacts of a warming planet and more visitors, but omits major sites in China, Australia and Latin America, writes Rob Soutar

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The Spegazzini glacier in the Los Glaciares national park, Argentina. The park is a UNESCO World Heritage site and is under threat from a hydropower development, local conservationists say. (Image by TomaB)

A major new report warns that some of the world’s most iconic heritage sites are increasingly vulnerable to the impacts of global warming and mass tourism, but overlooks the threats posed by wider development and resource extraction.

Popular tourist destinations such as Venice, the Galapagos Islands and the port city of Cartagena in Colombia are listed among the 31 sites in 29 countries under threat from rising sea levels, melting glaciers, droughts and wildfires in a report by UNESCO, the UN Development Programme and the Union of Concerned Scientists (UCS).  

There are over 1,300 UNESCO World Heritage Sites, places considered to be of special cultural or physical significance.

Climate threats

“Achieving the Paris Agreement’s goal of limiting global temperature rise to a level well below 2C is vitally important to protecting our world heritage for current and future generations,” said Mechtild Rössler, director of UNESCO’s World Heritage Centre.

In addition to the adverse impacts of a warmer planet, the mass transportation of tourists is also contributing to greenhouse gas emissions through the burning of fuel in cars, buses, boats, ships and aircraft.

Meanwhile, already scarce water resources are being stretched to satisfy mass tourism, worsening the impact of climate change on supplies.

Tourism-related infrastructure such as, hotels, harbours and airports bring economic benefits for developing countries, but add to environmental pressures at vulnerable sites, the report says.

Adam Markham, lead author of the report and deputy director of the Climate and Energy Program at the UCS, said tourist attractions such as the Easter Island statues are at risk of being lost to the sea because of coastal erosion. The report adds that many of the world’s most important coral reefs have suffered unprecedented coral bleaching linked to climate change this year.

Yet the report omits perhaps the world’s most famous coral reef and other notable sites vulnerable to climate change. Australia’s Great Barrier Reef was included in a draft version of the report but left out from the final version following a request from the country’s environment ministry, the BBC reported.  

A statement released by Australia’s Department for the Environment complained about the impact of stories on that the status of the Great Barrier Reef would have on the country’s tourism industry.

One of China’s major UNESCO sites - The Three Parallel Rivers protected area in southwest Yunnan province – was also omitted by the report. This region contains the headwaters of the Nu (Salween), Mekong and Yangtze (Jinsha) rivers and particularly vulnerable to climate change.

It sits on the edge of the Tibetan plateau, which is warming at three times the global average, leading to widespread desertification. Proposals to build a cascade of 13 mega dams on the Nu could also jeopardise the site. The boundaries of the reserve have already been shifted to allow for large-scale gold and copper mining.

The report points to the cumulative risks to heritage sites from other factors, such as a lack of resources for effective management, war, terrorism, poverty, urbanisation, infrastructure and oil and gas development.

But UNESCO failed to elaborate on the risks posed by other types of infrastructure projects not directly associated with the tourism industry.

For example, the potential impacts of massive hydropower developments on the UNESCO-protected Los Glaciares national park in Argentina is an issue that is notably absent.

The recently approved dams on the Santa Cruz river threaten the Perito Moreno, Spegazzini and Upsala glaciers, according to local conservationists.  

The project, which has been years in the planning and will add 5% to Argentina’s energy capacity, got the green light despite complaints by green groups that no valid environmental impact assessment had been presented. 

According to experts, the dam reservoir will shift the river flow and erode the front of the Perito Moreno glacier and stop blocks of ice breaking off, a phenomenon that attracts many thousands of tourists each year.

 

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