EVER CHANGING WORLD I TROPICAL DUNES

The Lencois Maranhenses Desert is located on the northern west coast of Brazil.
White sand is transported by rivers from the interior of the Amazon to the coast, where the sand is blown back to the land by strong winds. This creates a white, tropical desert landscape of 1,550 square kilometers. The rainy season of the Amazon climate causes a period of rain every year that fills the white sand dunes with water and creates a unique phenomenon of colorful lagoons that cover the entire desert. In the lagoons, algae can change the color of the water from turquoise to green, while sediment appears as dark brown spots on the bottom. The rivers that cross the desert get their reddish-brown color from leaves and other plant material that decays in the water. During the dry season, these lagoons slowly dry out, only leaving behind remnants of sediment. If you look closely, you can see traces of desert dwellers such as cows and goats, but also human footprints.