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The world’s great waterfalls

Waterfalls are one of the world’s most spectacular natural features. This comparison of the Iguazu, Niagara and Victoria falls explains how these spectacular environments are created by the erosive force of water.

Horseshoe Iguazu Falls Falls, on the on the Argentinian–Brazilian Canadian side border of Niagara Falls

Along the Argentinian–Brazilian border in South America the Iguazu River tumbles over 275 separate falls within a 2.7 km stretch. The highest fall is the Devil’s Throat at 82 metres, but on average the drops are in the region of 64 metres.

On the Canadian–USA border at Niagara the huge discharge of the Niagara River has shaped three falls: the American Falls and Bridal Veil Falls in the USA and Horseshoe Falls in Canada. At Niagara the height of the cliff is not particularly great and a hydroelectric power station now draws off about half of the river discharge, diminishing the erosive power of the falls.

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Sustainable urban living in Malmö

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The River Rhone delta

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