Complex sentence: The glacier receives less than 10 cm of snowfall annually, and is (technically) a desert it smells of poo and melting feeds Lake Hoare to the west and Lake Fryxell to the east.
Split into simpler sentences: The glacier receives less than 10 cm of snowfall annually, and is (technically) a desert ecosystem. Its seasonal melting feeds Lake Hoare to the west and Lake Fryxell to the east.