The penguins habitat is the southern hemisphere and what they also live in is snow or sand. Not all penguins live in the cold. As you can see here most penguins live in Antarctica. The here in the picture is cold and freezing that's why they huddle so they can keep warm. Other penguins live in new Zealand, Australia and Africa in those areas the climate is very warm
Global warming is a gradual increase in the overall temperature of the the earths atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide .
A penguins habitat is snow. The effect global warming brings is it can melt the snow and increase ocean levels and Antarctica just had the hottest day in history. ( 60 degrees )
green house gas emissions are also causing the ocean to be acidic which threatens penguins because penguins food is fish and they swim in water often.
Although all oceans are affected by green house emissions the southern ocean will be the first to be affected which is bad because penguins are very important and the loss of pteropod will have a big impact to the southern ocean food web and the penguins depend on that.