Europe is the only continent without a desert.
62
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
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
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There are more than 50,000 earthquakes throughout the world every year!
47