The aim of my study is to examine the appearance of ecology and natural environment in thetheory and practice of social work. By reviewing international literature, my aim is to review andsystematize basic theories and professional directions. I also consider it important to look at theHungarian aspects. Global environmental changes and social changes interact, and the socialwork profession evolves, and incudes new trends and approaches while reflecting ever-changingchallenges. The relationship between the person and his/her environment has always been oneof the central themes of social work, but the pursuit of sustainability and the focus on the naturalenvironment may bring a new dimension to the interpretation of the person-in-environmentapproach. In my paper, I attempt to understand the values and motivations of ‘green social work’,‘environmental social work’ and ‘eco-social work’ and I attempt to understand the relationshipbetween social work and the natural environment, and examine the roles social workers maycarry on related to the global environmental changes.