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In page Environmental movement in the United States:

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  • Environmental health movement dating at least to Progressive Era (the 1890s - 1920s) urban reforms including clean water supply, more efficient removal of raw sewage and reduction in crowded and unsanitary living conditions. Today Environmental health is more related to nutrition, preventive medicine, ageing well and other concerns specific to the human body's well-being.
  • Sustainability movement which started in the 1980s focused on Gaia theory, value of Earth and other interrelations between human sciences and human responsibilities. Its spinoff deep ecology was more spiritual but often claimed to be science.[citation needed]