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.
14
The North Atlantic gets 2.5 centimetres (1in) wider every year.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Australia's Great Barrier Reef is 1,250 miles long!
45
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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