The Sahara desert expands at about 1km per month.
90
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
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 water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
There are more than 50,000 earthquakes throughout the world every year!
47
Every year, Alaska has about 5,000 earthquakes.
31