A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
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 warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Every year, Alaska has about 5,000 earthquakes.
31
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
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