The average ice berg weighs 20,000,000 tons!
54
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
One cubic mile of seawater contains about 50 pounds of gold.
79
It's still possible to see the division between East and West Germany due to different light bulbs.
5
More than 25% of the world's forests are in Siberia.
51
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181