The main factors of environmental migration

(1) The total population exceeds the overloaded area of the population's environmental capacity, which is the root cause of environmental migration, mainly manifested in living in poverty due to insufficient food and water resources and poor sanitation conditions;

(2) The areas with large population and unsaturated population make environmental migration possible;

(3) The will of immigrants (including the will that is enforced by coercive means) enables environmental migration to be realized.