Changing lifestyle habits can only be effective for an individual's own health. To mask it as a step to contributing towards a healthier environment however is purely wishful thinking. I respect your lifestyle choices as an individual and of course people do need to adopt the principle of 'use only as much as you need' but do keep in mind that the major share of blame in the destruction of the environment lies in the incompetent and overtly greedful exploitation of the environmental resources done in the name of capital generation/profit under Imperialist-Capitalism.