Part of the border will shift because of the glacial melt, in another sign of how much humans are changing the world by burning planet-heating fossil fuels.

The melting of glaciers in the Alps has forced Italy and Switzerland to redraw the border that runs between them in the shadow of the Matterhorn. The frontier between the two countries has traditionally been delineated by the watershed,

This is not the first time the border has been changed and it will not be the last, given the impact of climate change on glaciers