\" \" Large swaths of red snow can be seen here in Neko Harbour, Antarctica. The red color is sometimes caused from the presence of the algae Chlamydomonas nivalis. Titled \"Freaks of the Storm,\" it includes a passage on red snow. But it turns out that, more often than not, red snow is the product of algae. Some popular science writers have also advised against eating red snow because it supposedly causes gastric problems.