It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
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
There are more than 50,000 earthquakes throughout the world every year!
47
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The state of Florida is bigger than England!
74
Every year, Alaska has about 5,000 earthquakes.
31
Forest fires move faster uphill than downhill.
52