The world has witnessed a remarkable growth in international migration since around the time of the International Conference on Population and Development (ICPD) in 1994, both within and between less developed and more developed regions. The global stock of international migrants is estimated to have more than doubled since the year 2000 (United Nations, 2013). In an increasingly interconnected and interdependent world, with improved means of transportation and communication, international migration has been growing in not only magnitude but also scope, complexity and impact. Today, most countries are simultaneously countries of origin, transit and destination of migrants. Countries in both less and more developed regions face various challenges and opportunities associated with migration. Much of the growth in international migration has been regular migration, typified by the mobility of workers and their family members. The magnitude of undocumented migrants or migrants in irregular situation 3 has also increased, while there are growing concerns that dislocations caused by environmental degradation and climate change could add to involuntary movements of people across international borders in the coming decades.

Related Subject(s): Migration
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