There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
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 Sahara desert expands at about 1km per month.
90
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The Caspian Sea is also classed as the world's largest lake.
52
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14