Ice area increasing in Antarctica

Scientists say they cannot explain the increasing area of ice in Antarctica, but some must know of my arguments and questions below:
If ice is melting at the poles and so less radiation is being reflected into the sky will this not decrease the effective sky temperature used to calculate the radiant energy lost by a surface on the ground during the day? Could this decrease surface temperatures of some bodies (depending on emissivities, etc)? Also, temperature change will effect the temperature of the seawater and this could cause different proportions of microscopic sea life to result. The temperature change and different turbidity of the water will change the reflectivity the absorptivity and emissivity of the seawater. Could this significantly affect energy exchange between earth and space and between water and ice? For instance for snow with an effective sky temperature of 230 K I calculate a 13 W/square metre loss in energy, whereas for an effective sky temperature of 250 K I calculate a 48 W/square metre gain in energy. Used absorptivity= 0.28 and emissivity=0.97. Used total solar energy (direct and diffuse) = 300W/square metre. Used surface temp of snow 260 K