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
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61