Climate change is one of, if not the biggest problem for penguins in the Antartic Peninsula. It can result in scarcity of food, shelter, and the conditions that they are used to living in. Their main source of food, krill, dies off because of the rapid climate change. Ice melts and disappears because sometimes during climate change it can melt when it gets warmer than usual. Their lives can completely change and take a turn for the worst.