Mass migration refers to the migration of large groups of people from one geographical area to another. Mass migration is distinguished from individual or small-scale migration; and also from seasonal migration, which may occur on a regular basis.

What are the climate, security, and economic factors that prompt mass migration? What environmental changes prompt migration, including sudden shocks (such as hurricanes, flooding, and heatwaves) and slow-moving stressors (such as persistent drought and sea level-rise)?

Nov 18, 2022 · Managed mass migration could thus help with many of the world's biggest problems, reducing the number of people living in poverty and climate devastation, and helping northern economies build...

Experts and U.S. government officials attribute this explosive growth in large part to the pandemic, which provoked mass migration around the world, adding serious challenges to an immigration...

Dec 16, 2022 · The number of international migrants grew to 281 million in 2020, meaning that 3.6% of the world’s people lived outside their country of birth that year, according to the United Nations’ International Organization for Migration (IOM).

Aug 1, 2017 · This can be illustrated with the following mass migration processes. A Pre-Industrial Mass Migration: The Atlantic Slave Trade. The Atlantic slave trade was one of the first mass migration capitalism-driven movements of the pre-industrial era.

May 28, 2023 · More welcoming government policy is one factor. And migration today begets migration tomorrow, as new arrivals bring over children and partners.

This article provides answers to basic questions about climate change and migration, starting with whether, how, and where climate change triggers migration and displacement. It also takes on questions such as who qualifies as a climate migrant and …

Jan 31, 2025 · This essay is part of The Great Migration, a series by Lydia Polgreen exploring how people are moving around the world today. We are living in an age of mass migration. Millions of people from the ...

Jun 29, 2017 · To better understand the mass movement of populations across the globe, Penn social science faculty are interpreting data, analyzing the effect of immigration on sending and receiving countries, and untangling the many complexities of immigration today.