The big idea: Forced migration is when people move because they have no real choice -- they are driven from home by danger or disaster.
This is different from voluntary migration (moving by choice, e.g. for a better job). The line matters: forced migrants are pushed out, not pulled.
People can be forced across a border (becoming refugees) or moved within their own country (becoming internally displaced).
Key terms
- Forced migration -- movement people are compelled to make by threat to life or livelihood.
- Refugee -- a forced migrant who has crossed an international border to seek safety.
- Internally displaced person (IDP) -- forced to flee but still inside their own country.
- Push factor -- a negative condition (war, drought) that drives people to leave.
The four main types of cause
- Political -- armed conflict, civil war, persecution of a group, or oppressive government.
- Environmental -- drought, flooding, sea-level rise, earthquakes or desertification destroy land and homes.
- Social -- ethnic or religious persecution, or threats to a particular community.
- Economic / developmental -- a dam or mine project that floods or seizes land and evicts residents.
Explain = give the mechanism: In an Explain answer, name the cause and say how it forces the move:
- conflict -> homes destroyed and lives at risk -> people flee for safety. - drought -> crops fail and water runs out -> people leave to survive.
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Named examples (use real places): Syria (from 2011) -- civil war forced over 6 million people abroad as refugees and displaced millions more inside the country (political/conflict cause).
Lake Chad basin, Sahel -- shrinking water and desertification, alongside conflict, have displaced over 2 million people (environmental + political).
Three Gorges Dam, China -- reservoir flooding relocated more than 1 million residents (developmental cause).
Effects of forced migration
- Environmental -- large refugee camps strip nearby land for fuelwood and pollute water sources.
- Political -- a sudden influx can strain a host country and raise tensions or instability.
- Social -- families are split, schooling is disrupted, and host communities may face pressure on services.
- On the source area -- it loses working-age people and skills (a 'brain drain' from the home region).
How this is tested: Paper 2 Q4 often opens with a refugee infographic -- a map or chart of how many refugees a country resettled. You Estimate a value or work out the change between two years, then evaluate whether the figure gives a misleading picture.
| Year | Refugees resettled (thousands) |
|---|---|
| 2012 | 58 |
| 2014 | 70 |
| 2016 | 85 |
| 2018 | 23 |
| 2020 | 12 |
IB-style question -- read the infographic
Using the table above: (a) estimate the number of refugees resettled in 2016 [1]; (b) work out the increase in refugees resettled between 2012 and 2016 [1].
How to answer each part
- (a) Estimate 2016. Read the 2016 row -> about 85 thousand refugees.
- (b) Work out the increase. Subtract: 85 - 58 = 27 thousand more resettled in 2016 than in 2012. Always quote the units.
Final answer
(a) about 85 thousand; (b) an increase of about 27 thousand (85 - 58).