Paris : One of the world's first cities that came close to being wiped off the map during tragic floods this summer in Pakistan. 

Though Mohenjo Daro survived, it has to become a symbol of the threat global warming poses to humanity's cultural heritage. 

Built in around 3,000 BC by the Indus civilisation in modern-day South Asia, Mohenjo Daro was not swept away by the floods most likely thanks to the genius of its designers. 

Perched high above the Indus river,  the city was equipped with a primitive drainage system and sewers, meaning much of the floodwaters could be evacuated.

Nearly 1.600 Pakistanis died in the floods and 33 million others were affected in a disaster ''probably'' made worse by global warming, according to World Weather Attribution, a network of researchers.

The ancient metropolis ''could have disappeared with all the archaeological traces'' it contains, said Lazare Eloundou Assamo, the director of the World Heritage Programme at UN agency UNESCO.

The Pakistani site was '' a victim'' of climate change and was ''very lucky'' to still be around, exactly 100 years since it was first discovered in 1922, Assamo said.

Fortunately, ''the situation is not catastrophic'' in Mohenjo Daro, said Thierry Joffroy, a specialist in brick architecture who visited the site on behalf of UNESCO.

Despite ground sinking in some areas and water damage to some structures, the site ''can be repaired,'' Joffroy said.

For 50 years, Paris-based UNESCO has compiled a list of World Heritage sites, significant places that are deemed worthy of protection, and is marking the milestone this week in Greece.

''To protect this heritage ourselves ....... is to confront the consequences of climate disruption and the loss of biodiversity. It's the main threat ........ that we assess in a tangible way,'' UNESCO director Audrey Azoulay told the conference in Delphi last Thursday.

Of its 1,154 World Heritage sites, ''one site in five, and more than a third of natural sites, already see this threat as a reality,'' she said.

''We are experiencing many more incidents of floods, hurricanes, cyclones, typhoons,'' said Rohit Jigyasu of International Center for the Study of the Conservation and Restoration of Cultural Property [ICCROM].

''We have these climate related disasters, which are having a huge impact on sites, for example Mohenjo Daro,'' he said.

Huge forest fires have scorched the Rocky Mountains in Canada, which are a world heritage site, and this year flames within 15 kilometres [nine miles] of Delphi as heatwaves intensify the severity of wildfires across the Mediterranean basin.

IN PERU, meanwhile, landslides occurred this year at the foot of Machu Picchu in the Andes mountains. [AFP]


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