Here’s a link to a UNESCO report on World Heritage and Tourism in a Changing Climate. It begins:
From Venice and its Lagoon to the Galápagos Islands, some of the world’s most iconic World Heritage sites are vulnerable to climate change. In this new analysis, the United Nations Environment Programme (UNEP), the United Nations Educational, Scientific and Cultural Organization (UNESCO), and the Union of Concerned Scientists (UCS) highlight the growing climate risks to World Heritage sites and recommend a clear and achievable response. Globally, we need to understand more about how climate change will affect all World Heritage sites, and how it will interact with and amplify the effects of other stresses, including urbanization, pollution, natural resource extraction and, increasingly, tourism. …