What is Sustainable Alternative Development (AD) and how does it transform the life of people in drug crop cultivating communities? The Mae Fah Luang Foundation with support of the Global Partnership on Drug Policies and Development explains how the AD approach can diversify livelihood opportunities to help impoverished and marginalised communities to thrive. AD puts people and their needs at the centre and offers a holistic solution to address the root causes of illicit drug crop cultivation while fostering sustainable development in balance with the environment.