enerally between 3 �C and 8 �C), cloudy in the south, and very windy. Winters are dark and cold, but without extreme temperatures in the south and west (Ushuaia rarely reaches ?10 �C, but hovers around 0 �C for several months, and snow can be heavy). In the east and north, winters are much more severe, with cold snaps bringing temperatures down to ?20 �C all the way to Rio Grande on the Atlantic coast. Snow can fall even in the summer in most areas as well.
The depletion of the ozone layer over the South Pole has been reported as being responsible for blindness and skin cancer in sheep in Tierra del Fuego, and concerns for human health and ecosystems
