The Atlantic Ocean is saltier than the Pacific Ocean.
54
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
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
Europe is the only continent without a desert.
62
In 1850, only 8% of the people in California were women.
0