While there is little doubt that environmental matters occupy an important place in present day public concern, historically this was not always the case. Some commentators have suggested that the historical roots of current environmental problems are to be found in the Judaeo-Christian tradition, which, of stewardship the basis of a new ethic of caring for nature. It is only since the late 1800s that there has been a developing interest in the conservation of the natural environment. The Romantic Movement, for example, was influential in petitioning for the creation of wilderness preserves (such as Yellowstone National Park in Wyoming, in the United States) as areas of spiritual refuge from expansionist industrialism.