‘Snow blood’: Why climate change may be turning the Alps red
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High in the Alps, huge patches of snow mysteriously turn red in a phenomenon known as “snowblood”. The result of a type of algae, the red spots are becoming more common, locals say, and are likely caused by climate change, scientists say. They fear the algae could spell ecological disaster for this remote area, as the red pigment reduces the snow’s ability to reflect sunlight, causing it to melt faster.