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The ocean’s blue does not come merely from reflecting the sky. Water preferentially absorbs red wavelengths, while blue light penetrates farther and scatters back toward our eyes—giving deep, clear water its characteristic colour.
6+ day, 5+ hour ago (813+ words) Selective absorption gives clear water its blue tint. Scattering, sky reflections, suspended material and shallow seabeds help determine the color we actually see. By The Long View · Edited by Lachlan Brown Published September 8, 2026 · How we edit The sea can reflect…...