In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Forest fires move faster uphill than downhill.
52
Israel's Dead Sea is 1,312 feet below sea level.
48
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41