The Niagara Falls moves upstream at an average rate of about 295ft a century!
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The Sahara desert expands at about 1km per month.
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10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
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