Table 2 Contribution of refugee migration to water stress in key destination regions

Dest.	Pop.	Stress	Refug.	Δ BWD		Δ Stress
	10⁶	%	10⁶	MCM/y		%-points
				SR	LR	SR	LR
IRN	73.8	81	1.0	406	740	0.6	1.0
PAK	179.4	115	1.9	683	806	0.6	0.7
TUR	79.8	42	2.8	282	651	0.3	0.7
EU	485.0	21	0.8	79	83	0.0	0.0
LBN	6.7	59	1.7	390	330	12.4	7.9
JOR	9.6	100	3.3	631	495	75.2	47.4
JOR*	9.6	100	1.1	217	162	24.2	13.5

Population, water stress, and refugees in Pakistan, Iran, Turkey, the European Union, Lebanon, and Jordan.
The estimated short-run (SR) and long-run (LR) water footprint of refugees (ΔBWF, in a million cubic meters per year, note that 1 km³ = 1000 MCM) are given in each destination country, along with its effect on water stress (Δ Stress). PAK and IRN focus on 2010, at the height of the Afghan refugee displacement, and only include Afghan refugees—results including all refugee origins are provided in Table S2. Data for the EU are obtained for 2016 and include Afghan and Syrian refugees. LBN and JOR include estimates of Syrian refugees (registered and unregistered) obtained from refs. ^{10, 43} for Lebanon and Jordan, respectively. LBN and JOR also include registered refugees from all the other countries in the UNHCR dataset for 2016, which includes Palestinians under the UNRWA mandate. JOR* only includes registered and unregistered Syrian refugees from ref. ¹⁰ and estimates the net effect of the Syrian refugee crisis on Jordanian water stress by subtracting the exploitable increase in transboundary river flow (18 MCM/y) from ΔBWF when determining ΔStress.

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