Antarctica is often called ‘the White continent’, an apt name as most of it is permanently covered in snow or ice. However, one doesn’t really do the continent justice by just calling it white. There are many different shades of white. And there are many other colours: the blue of the icebergs, orange of the lichens, different darker colours of the rocks. This makes it definitely not monotonous.
So by turning pictures in black and white, one loses some of the diversity in colours. However, these pictures often have a much more dramatic feel to it, like these two examples.