The Caspian Sea is also classed as the world's largest lake.
52
The average ice berg weighs 20,000,000 tons!
54
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 names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Forest fires move faster uphill than downhill.
52
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
The Amazon rainforest produces more than 20% the world's oxygen supply.
182