The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
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
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
