This is The Guardian.

Today, a warning from the coldest capital on Earth.

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Search London Business School or London.edu. Once upon a time, actually, for the vast majority of human history, people lived as nomads.

In Mongolia, one third of the country still does, herding bands of hundreds of animals

across the country's vast and pristine grasslands.

But this way of life that is so essentially human in 2025 is getting harder.

More and more Mongolians are trading the nomadic life for the big city, Ulan Batore.

And there, they're facing a shocking you problem.

From The Guardian, I'm Michael Safi.

Today in focus, Mongolia's poisoned air.

Tracy McVey, you're the editor of one of the parts of the Guardian that ends up producing our most interesting stories, the global development section.

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