If global warming reaches or exceeds +2.0 Celsius, the West Antarctica Ice Sheet will pass a point of no return and eventually melt. Nobody knows when.

According to the Potsdam Institute for Climate Impact Research, it will lead to a rise of 2.5 metres in global sea levels, flooding all the world’s major port cities.

Unable to load or unload because marine terminals will be underwater, the world’s supply chains will collapse.

The world is currently at +/-1.1 Celsius above pre-industrial levels and is on track to exceed +3.0 Celsius.

"If we give up the Paris Agreement, we give up Hamburg, Tokyo and New York," warns Potsdam.

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