The Sahara desert expands at about 1km per month.
90
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
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
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18