A migrant is a person who is moving or has moved across an international border or within a state away from their habitual place of residence. Migrants may leave their habitual place of residence voluntarily in search of work or economic opportunities, to join family members, or to study. Others might leave to escape persecution, terrorism, or human rights violations, or in response to the adverse effects of climate change, natural disasters, or other environmental hazards. Here at the IIR, we research a variety of different kinds of migrants, including refugees and Internally Displaced Persons.