is an art form, developed in the 20th-century, intended to involve or encompass the spectators rather than merely to face them; the form can be regarded as having developed as part of a larger artistic current that sought to break down the historical dichotomy between life and art - but more probable is that the artist, and in particular the sculptor, felt the need to envelop the observer with sculpturally devised surroundings. The environmental sculptor can utilize virtually any medium and material, from earth and stone to water and plants. Light, wind and rain are a natural component of environmental art.