Sources.
- http://en.wikipedia.org/wiki/Temperateness
- http://uk.encarta.msn.com/encyclopedia_781532752/temperate_zone.html
- http://www.kidsgeo.com/geography-for-kids/0074-latitude-effects-temperature.php
- http://www.ucmp.berkeley.edu/exhibits/biomes/index.php
- http://www.bbc.co.uk/weather/features/understanding/altitude.shtml