Daniel Buron – Spain – Opera Segnalata – Highlight in the category Open Nature
Road to hell
Tinto River (Huelva, Spain) is a unique river by water conditions, extremely acidic (pH 2) and abundant sulfids and iron, that strange bacteria convert to sulfuric acid and iron oxides, which gives the water colorful yellow and red. These Martian conditions, studied by scientists from NASA, are extreme for many plants and animals. The image shows an aerial view of a settling pond after washing mineral with river water.