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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There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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One cubic mile of seawater contains about 50 pounds of gold.
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The Caspian Sea is also classed as the world's largest lake.
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There are more than 50,000 earthquakes throughout the world every year!
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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