The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. When sunlight hits ...

We’re all taught that water is clear, so why does the ocean look so strikingly blue when we’re staring out at it? It turns out the colour isn’t about the water itself being blue, but about how light ...

The bottom of a cut-out block of 2 m thick ice covered with ice algae, placed atop the sea ice of McMurdo Sound, Antarctica. The disappearance of sea ice in polar regions due to global warming not ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Human-driven climate change is altering the world’s oceans, including their very ...

To track the changes in ocean color, scientists analyzed measurements of ocean color taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite, which has been ...