Cities are sinking — and experts say we're not doing enough to save them

The ever-expanding, online archive of natural disaster footage has produced some surreal and disturbing images. Key points: IPCC found 0.5-degree difference in warming could mean a 10cm sea-level rise by 2100.

Waiters in gumboots waded through knee-high water, serving sodden diners pizza, while elsewhere people in wetsuits swam laps through Piazza San Marco — the city and the surrounding sea, indistinguishable.

"There are many cities around the world vulnerable to sea level rise ... Shanghai and Guangzhou, Jakarta, Bangkok, Dhaka, Alexandria, Lagos, New York, Miami, London and Cairns," says Professor Mark Howden, Director of the Climate Change Institute at ANU and Vice Chair of the IPCC.

The map of the world, climate scientists tell us, will be radically redrawn by the end of the century.

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