Give due consideration to infrastructure facilities, contour line and soil conservation methods particularly in hill areas. 5.2. Design and maintain infrastructure giving due consideration to the runoff system and flooding. Minimize the impact of sea level rise on coastal settlements and infrastructure. Greening cities by introducing urban forest parks, roof top gardens, vertical gardens, wetland parks and road side planting. 6.8 Tourism and Recreation Sector. According to the Davos Declaration signed during the second International Conference on Tourism and Climate Change; tourism is estimated to contribute at least 5% of global CO2 emissions. The sector contributes to the global economy as well as local economy to a great extent.