Adaptation involves adjustments to reduce vulnerability to climate stresses and is not fundamentally different from development. Adaptation can vary in timing, scope, purposefulness, and adapting agent. While there is overlap between adaptation and development, explicit adaptation activities are also needed to address climate change impacts directly, such as measures to reduce exposure to risks from glacial lake outburst floods and glacier retreat. Adaptation requires both bottom-up and top-down approaches across multiple scales with consideration of institutional setting, financing, and measuring efficiency.