E.g., 12/04/2020
E.g., 12/04/2020

Migration Information Source

Residents are affected by massive flooding in Thailand in 2011.
Cpl. Robert J. Maurer/U.S. Marine Corps

Migration can help build resilience against the encroaching effects of climate change. Instead of being passive victims of environmental degradation, individuals sometimes move to gain money, knowledge, and skills that can fortify their household of origin. Migrant workers from Thailand demonstrate how and under what conditions this process works.

President Donald Trump speaks at an event in Arizona.
Gage Skidmore

Despite a widespread perception that the Trump administration has drastically slashed legal immigration to the United States, a review of the data shows that temporary and permanent admissions during the period mostly followed previous trends—at least until the COVID-19 pandemic hit. This article examines trends in temporary, permanent, and humanitarian admissions during the administration, and the related policies that could take a more significant bite ahead if left unchanged.

A farmer in Tanzania tends to crops.
B. Bannon/UNHCR

Climate-induced migration can lead to tensions and violence between host communities and new arrivals. This conflict can flare up at various levels, including among rural farmers and herders in relatively peaceful countries such as Tanzania.

A soccer fan displays a mix of regalia from the United States and Mexico at the 2010 FIFA World Cup.
State Department

The nearly 11 million Mexican immigrants in the United States represent almost one-quarter of the country’s entire immigrant population, and as such are the largest foreign-born group. But their numbers have been declining, shrinking by 7 percent between 2010 and 2019. Among recently arrived immigrants, those from China and India now outpace Mexicans for the first time.

Federal immigration officers make an arrest during an operation in Virginia.
U.S. Immigration and Customs Enforcement

Before entering office, President Donald Trump promised to deport millions of unauthorized immigrants. Yet despite his general successes in creating a more restrictive and punitive immigration system, this goal has eluded his administration. So-called “sanctuary” policies implemented by state and local governments to limit their cooperation with U.S. Immigration and Customs Enforcement have been a key reason why arrests and removals have not reached earlier peaks.

A family in Pakistan walks through flooded streets
Asian Development Bank

Climate change is affecting human movement now, causing internal displacement and international migration, and will do so in the future. But the impact is often indirect, and rarely is the process as straightforward as one might think. This article provides an overview of research on how climatic hazards drive and affect migration, reviewing which types of people might migrate and under what conditions.

Recent Articles

Rising sea levels threaten Pacific Islands

While media and academic discussions of "climate refugees" paint a picture of mass displacement of millions, in reality many communities vulnerable to climate change may choose to stay as a result of strong cultural, historical, and spiritual attachments to place. This article explores this "voluntary immobility" and its implications in the Pacific Islands.

Canadian family on Canada Day

Though small, the population of Canadians in the United States is quite diverse, and includes students, highly skilled professionals on H-1B or NAFTA visas, family migrants, and retirees. Canadian immigrants have much higher educational attainment and incomes than the native- and overall foreign-born populations. This article offers an interesting data snapshot of Canadians in the United States.

A woman walks alongside a train in Mexico.

In recent years, women from Central America have begun to make up a greater share of migrant apprehensions in Mexico and at the U.S. Southwest border. Systemic insecurity, poverty, and corruption are among the factors driving women and others to flee. This article explores the increase in female migration from Central America and the challenges these women face on their journey.

A boy peers through fencing at the U.S.-Mexico border.

Frustrated by an uptick in migrant apprehensions at the U.S.-Mexico border in recent months, the Trump administration unveiled a set of sweeping changes, aiming to prosecute for federal immigration crimes every migrant apprehended crossing illegally. The policy will likely be hindered by legal challenges and capacity limitations, as this article explores.

Over the past decade, migration has emerged as one of the most pressing issues facing governments around the world. Nearing the end of his tenure as Director General of the International Organization for Migration (IOM), Ambassador William Lacy Swing sat down with MPI Senior Fellow Kathleen Newland to reflect on his ten years leading IOM, as well as the international community's role on migration going forward.

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Bangui Airport
The humanitarian crisis unfolding in the Central African Republic (CAR) has received scant world attention, even as more than 20 percent of the population of 4.25 million has been displaced as a result of deadly sectarian violence. This article examines the causes of the violence, the international community response, and the impacts of large-scale displacement within the country and beyond its borders.
Marshallese watch a jepta dance competition

Approximately one-third of the population of the Republic of the Marshall Islands, a series of islands and atolls in the Pacific, has relocated to the United States, with Hawaii, Guam, and Arkansas key destinations. Lack of economic and employment opportunities are among the leading factors that have prompted this migration. Access to education and health care, which are critically important for a population that has reduced life expectancy and significant negative health indicators, also represent key factors.

As Qatar races to build its infrastructure for the 2022 World Cup, international civil-society actors increasingly are highlighting the harsh conditions under which temporary labor migrants often work in Qatar and other Gulf Cooperation Council (GCC) countries. This article examines the emerging roles, challenges, and opportunities that civil-society groups face in the region; it also analyzes the prevailing legal and political structures where civil society operates in the Gulf.
Rickshaw driver

Internal migration spurred primarily by employment and marriage helps shape the economic, social, and political life of India’s sending and receiving regions. Labor migrants face myriad challenges, including restricted access to basic needs such as identity documentation and social entitlements. This article describes the barriers to integration that labor migrants face, and details the policy environment surrounding their integration challenges.

This article explores the underlying causes of the May 2013 riots across several Stockholm suburbs that have high proportions of foreign-born residents, and asks whether rapid increases in the size of Sweden's immigrant population or the government's integration efforts played a central role.

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In 2008, there were just under 800,000 apprehensions, the lowest number since 1975. MPI's Kristen McCabe and Jeanne Batalova take a detailed look at the latest immigration enforcement statistics.

There were nearly 40 million temporary admissions to the United States in 2008, more than twice the number in 1990. MPI's Jeanne Batalova outlines the definition of nonimmigrants and takes a detailed look at admissions data and data limitations.

Over one million immigrants—one-third from Mexico, India, and the Philippines—became U.S. citizens in 2008. MPI's Jeanne Batalova takes a detailed look at the latest naturalization trends in the United States.

In 2008, the United States raised the ceiling on refugee admission by 10,000, admitted more than 60,000 refugees for resettlement, and granted asylum to nearly 23,000 people. MPI's Jeanne Batalova takes a detailed look at refugee and asylum statistics in the United States.

More than 1.1 million persons became legal permanent residents (LPRs) in the United States in 2008. Nearly two-thirds of new LPRs are immigrants with family ties in the United States, reports MPI's Jeanne Batalova in this updated look at the latest statistics on legal immigration.

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MPI's Muzaffar Chishti and Claire Bergeron report on the 2008 presidential election, two Supreme Court cases on immigration, Arizona Proposition 202, and more.

MPI's Muzaffar Chishti and Claire Bergeron report on the decrease in unauthorized immigration, the latest ruling on Arizona's employer-sanctions law, Iraqi refugees, Alabama and Arkansas on the in-state tuition debate, and more.

MPI's Claire Bergeron and Muzaffar Chishti report on the Democratic and Republican platforms, the worksite raid in Mississippi, the new citizenship test, and more.

MPI's Muzaffar Chishti and Claire Bergeron report on the Scheduled Departure program, special visas for Iraqi nationals, hospital "deportations," and more.

MPI's Muzaffar Chishti and Claire Bergeron report on immigrant detainee medical care, a federal court's dismissal of Arar v. Ashcroft, the National Guard leaving the Southwest border, and more.

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