The color of Earth's oceans has changed significantly over the past two decades, most likely due to human-induced climate change, according to a new study. More than 56 percent of the oceans, more than the total land area on the planet, have seen a color change, he added. The study, titled “Global climate change trends detected in ocean ecology indicators,” was published in the journal Nature in early July. It was conducted by BB Cael and Stephanie Henson of the National Oceanography Center in the United Kingdom, Kelsey Bisson of Oregon State University (USA), Emmanuel Boss of the University of Maine (USA), and Stephanie Dutkiewicz of the Massachusetts Institute of Technology.