BV1- Migration: Cause, consequence or opportunity?

Migration is often discussed in terms of economics, nationality, culture; yet this perspective leaves out some crucial factors: environment and climate change. Environmental degradation and climate change are frequent causes and consequences of human migration.
Although there are few instances of climate change as the sole factor in migration, climate change is widely recognized as a contributing and exacerbating factor in migration. In case of biodiversity and environmental degradation, migration can disrupt ecological processes (including human beings) and lead to loss of species, habitats, ecological connectivity, and long-term residents’ livelihoods. Migration can also introduce invasive species, and migrants’ unsustainable use of resources can degrade the environment in their new homes. Migration threatens ecosystems because it can rapidly disrupt settled patterns of resource use and human interaction with the environment.