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Changes in future heat exposure magnitude in major cities worldwide until 2100. \(\Delta\)MAG 1991–2000 to 2090–2099 in case of RCP2.6/SSP1 (a) and in case of RCP8.5/SSP5 (b). (Map created in R (version 3.6.2)28 using the tmap package (version 2.3-2)29).