Mexico City is built on top of an underground resevoir!
47
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Even Antarctica has an area code. It's 672.
58
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 water of the Antarctica is so cold that nothing can rot there.
334
The average ice berg weighs 20,000,000 tons!
54