![]() ![]() ![]() "The public is well instructed about the presence of algae in the oceans," but less aware of related microorganisms living in the soil atop mountains and in the snow that accumulates at those high altitudes, Maréchal said. Related: Snowball Earth: When the Blue Planet went white Much like the microalgae that inhabit oceans, lakes and rivers, snow-borne microalgae help form the base of the food web of a mountainous ecosystem and likely react to pollution and climate change in a similar fashion, said Eric Maréchal, a coordinator of the AlpAlga consortium and a director of the Laboratory of Cellular and Plant Physiology, a research facility in Grenoble, France. The expedition is part of the AlpAlga project, an effort to study microalgae living in the mountains, 3,280 to 9,842 feet (1,000 to 3,000 meters) above sea level. ![]() But no, these aren't the sites of violent mountaintop massacres - the spooky red stains, known as "glacier blood," actually come from microalgae that live in the snow, and scientists recently trekked into the Alps to study these mysterious organisms. ![]()
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