591493 external_news 1494254319 1494259493 Dissolved oxygen levels in ocean water are a good indication of the health of the world's oceans. But new research from Georgia Tech shows those levels have been declining for the past 20 years. The study, published in Geophysical Research Letters, looked at ocean-related information dating back more than 50 years to find patterns and trends that could be linked to climate change. Researchers found that rising water temperature is a major contributor to the lower oxygen levels, which are dropping at a faster rate than previously predicted. Taka Ito, an associate professor in the School of Earth and Atmospheric Sciences, led the research team. 

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