One cubic mile of seawater contains about 50 pounds of gold.
79
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
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14