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 Amazon rainforest produces more than 20% the world's oxygen supply.
182
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Caspian Sea is also classed as the world's largest lake.
52
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Israel's Dead Sea is 1,312 feet below sea level.
48
Check your map! Virginia extends farther west than West Virginia.
67