Energy conservation is a critical problem that needs to be addressed further in schools. The Dark Skies Rangers Global Initiative is an awareness programme aimed at learners of all ages who are asked to measure light pollution in their district. We utilize the “Light Shielding Demonstration” to provide vocabulary, concepts, and visual illustrations of the causes of light pollution. The learners evaluate the level of light pollution, how much energy is being wasted and produce a master plan for the local authorities. In 2013, in the Portuguese city of Vila Real, a learner named Francisco Pires produced an inspiring film, asking the Local Council to adopt more dark-sky friendly street lighting and they responded positively, saving 40% in street illumination costs. In the same city a geography teacher and her learners produced a plan to create a tourist area near Vila Real devoted to Night Sky Observation.