The Sahara desert expands at about 1km per month.
90
Forest fires move faster uphill than downhill.
52
The water of the Antarctica is so cold that nothing can rot there.
334
One cubic mile of seawater contains about 50 pounds of gold.
79
The state with the longest coastline in the Continental U.S. is Michigan.
31
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181