The removal of existing dams is primarily motivated by:

The removal of existing dams is primarily motivated by the aim to restore the natural state of river ecosystems and improve conditions for fish populations, which can significantly enhance biodiversity and overall ecosystem health. Dams can disrupt the natural flow of rivers, impede fish migration, and alter habitat conditions. By removing dams, rivers can return to their natural courses, allowing the restoration of habitats that support a variety of aquatic species, including those that are threatened or endangered.

Additionally, the scenic beauty of rivers can be significantly enhanced by dam removal, as natural landscapes often attract tourists and provide recreational opportunities for local communities. This ecological restoration not only benefits the natural environment but also can improve the quality of life for people living near these waterways.

While the other motivations listed, such as urban drinking water needs, irrigation needs, and the demand for hydroelectric power, are important considerations in water management and infrastructure development, they do not typically drive the movement towards removing dams. In fact, these needs often support the construction and maintenance of dam infrastructure rather than its removal. Thus, the primary motivation for dam removal is rooted in environmental restoration and the revival of ecosystems.