Being "environment friendly" or "eco-friendly" is the 'in thing' today. Aiming a zero-waste or vegan or carbon-neutral lifestyle are now trendy. The recent climate strikes and the declaration of a 'climate emergency' have raised awareness on environmental issues, motivating behavioural change in people towards sustainable lifestyles. However, do people tend to perceive themselves as better than others in living such a planet-friendly life? Yes, says a study by researchers at the University of Gothenburg, Sweden.