[eng] The adoption of environmental management systems (EMS) by multinational and domestic companies in the tourism sector, has been a powerful trend during last decades around the world. Being the touristic sector one of the most pollutant ones, four times more than previously estimated, accounting for about 8 % of global greenhouse gas emissions ( Lenzen, M., Sun, Y., Faturay, F., 2018), it has been reported a large diffusion of environmental certifications, such as ISO 14001, specifically inthe hotel industry, remarkable on worldwide basis(Marimon et al., 2011). Thus, this paper will take the boutique hotel niche in Mallorca, Spain as a case study to see what the adoption level of EMS has been.On the other hand, the central goal of this paper is to identify the motivations, benefits and costs from adopting an environmental management system by boutique hotels in Mallorca and the barriers that these touristic establishments found in case of not having adopted one. First by analysing the hotel market of Mallorca and its peculiarities in concert with the literature. Secondly, by analysing what CSR is, and its focus on EMS. And finally, through an experimental quantitative analysis, determining and analysing possible motivations, benefits,and costs from adopting an EMS.