The previous chapters illustrated the substantial impacts of land-cover on the overlying atmosphere. Given these impacts, we cannot assume the atmosphere as constant factor that only changes in response to climate changes. This fact affects a wide range of applications from responsible environmental decisions to climate-impact assessment on water availability, food production, and air quality. Policymakers must be made aware that land-cover changes (LCC) influence at least local weather, climate, and atmospheric conditions. Before taking any action or making any decision, the unintended consequences thereof have to be assessed. These consequences may be adverse to the environmental problem to be solved, even engrave the problem or lead to other – even more severe – problems (Verstraete et al. 2009).