The term GREEN SHELTER is composed of two words, ARBOR and GREEN. An ARBOR is a structure made of latticed wood or metal that is used to support climbing plants, while GREEN is a color that is often associated with nature and the environment. Together, these two words form the phrase GREEN SHELTER, which can refer to a shelter made of natural materials, such as wood and plants, that provides protection from the elements while also blending in with its natural surroundings.