Climate zones

thumb|upright=1.3|Areas of the world with subtropical climates

point above which snow and ice cover the ground throughout the year

edge of the habitat at which trees are capable of growing

A latitude of 25 deg to 35 degree of both hemispheres is called horse latitude.

geographic climate area relevant to plant growth and survival

way of classifying the world's climates

ability of plants to survive adverse growing conditions

climate zone of highest average temperatures

thumb|Hemiboreal deciduous forest in Latvia. Latvia, like other hemiboreal areas, also has extensive lush coniferous forests. Hemiboreal means halfway between the temperate and subarctic (or boreal) zones. The term is most frequently used in the context of climates and ecosystems.