Figure 6.16 Fastest available September trans-Arctic routes from future climate projections. Routes for low emissions (equivalent to achieving the Paris Agreement; RCP2.6, upper row) and high emissions (business-as-usual, RCP8.5; lower row) split into three periods (early-, mid- and late-century), each containing 15 consecutive Septembers. Line weights indicate the relative number of transits using the same route. Faint dashed grey lines indicate the Exclusive Economic Zones (Melia et al., 2016).