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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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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Mexico City is built on top of an underground resevoir!
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The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
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The state of Florida is bigger than England!
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Every year, Alaska has about 5,000 earthquakes.
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10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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Australia's Great Barrier Reef is 1,250 miles long!
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