The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Forest fires move faster uphill than downhill.
52
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
In 1850, only 8% of the people in California were women.
0
Mexico City is built on top of an underground resevoir!
47
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
There are approximately three chickens for every human on Earth.
13