This thesis explores the relationship between behaviour and the waste issue as a consequence of the unsustainable tourism development in on of the most popular Himalayan sites: the "Everest (Sagarmatha) National Park" in Nepal. The Himalayas of Nepal attracts people from all over the world and tourism has grown exponentially since the 1950s. The high influx of tourists generated many positive and negative impacts for the country. Tourism-induced waste generation is seen as one of the major

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... ts to environmental sustainability in remote mountainous regions and protected areas in the Himalayas. As environmental damage is generally rooted in human behaviour and can be managed by changing relevant behaviour, the waste issue could be reduced if individuals adopt pro-environmental behaviour patterns. Thus, understanding and conceptualizing the social and ecological context of environmental behaviour is essential to promote sustainable resource management and to change relevant critical behaviours. The challenge lies in examining, analyzing, and understanding various factors and processes that determine behaviour. Only when there is a clear understanding of what factors influence behaviours, solutions to environmental problems which require behavioural change can be applied through the successful implementation of policy initiatives. The study makes several noteworthy contributions to trans-disciplinary environment-behaviour research in Development Studies and is embedded within the broader arena of social science. Applied research approaches are particularly desirably in industrially less advanced countries where a need for sustainable development exists. It sets out (1) to identify tourists' behaviours, attitudes, and knowledge towards solid waste, solid waste management and its possible problems in the Sagarmatha National Park, (2) to determine factors that have the greatest influence on tourists' waste behaviour, and (3) to develop an explanatory model to predict waste behaviours. Ajzen's Theory of Reasoned Ac [...]