Earth’s Oceans Were Green a Billion Years Ago. They Could Soon Be Green Again.
Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...
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This is what the color blind see when they put on these glasses
A vastly diminished color spectrum. Here's how the glasses can help. Most people have three color cones in their eyes. Blue, green, and red. The ratio of light for each incoming color is then sent ...