A deconstructed rainbow of around a dozen multicolor lagoons ... which can be up to 16 feet (5 m) thick. The white color surrounding most lagoons in the image is a mix of salt and silt.

Thursday, April 3rd, is National Find a Rainbow Day. Hawai'i, the "Rainbow Capitol of the World," is known for its vibrant Ānuenue (rainbows), but climate change threatens their future. A ...