The expected impact is mainly related to increased costs for infrastructure maintenance due to the expected increase of "thermal stress" on the road and railway infrastructure. Problems resulting from the thermal stress require strict adaptation expenses -an annual increase of adaptation costs by 0.4 to 0.6 per cent for road surfaces until 2070 and up to 83 per cent for railway infrastructure. In the realistic scenario to 2020, this area includes floodplain and riparian forests in a substantial part of Miziian forestry district, especially in the region of the Dobrudzha coast. In 2050, Zone A will also cover low sub-belt forests of durmast, beech and fir in the Balkan Mountains, Eastern Rhodope and Pirin subregion.