Snow environments are found on every continent on earth. In the last decades, alarming changes due to global warming have been recorded both in polar and mountainous snow regions (melting of glaciers, reduced snowfall). Snow ecosystems harbor ecologically interesting organisms highly adapted for life at extremely cold temperatures, with little water and nutrients, and under high radiation and extreme wind conditions. Little is known about the specific organisms that are living in snow and we do not know their ability to adapt to a changing climate. In this research, a detailed inventory of microbial organisms found in snow will be undertaken via gene sequencing approaches and cultivation of bacteria and fungi isolated from snow.