Methane (CH4);. Nitrous oxide (N2O);. Hydrochlorofluorocarbons (HCFCs); and. Perfluorocarbons (PFCs);. F. Baseline methodologies. IPCC Guidelines. G. Projected climate impacts and related assumptions. The identified climate change impact are:. Tropical cyclone & storm surge,. Flush flooding,. Heat waves,. Sea level rise,. Coastal erosion,. Water scarcity and desertification. Reduction in fisheries & impacts on marine environment and agriculture. H. Type of adaptation contributions.