Ocean scientists have designed a new aquatic robot that can go where they suspect some of the heat energy from global warming is hiding: in the abyss.

(animation) The Lower 48 United States was 0.5°F above average in 2014, making it the 34th warmest year in the historical record (1895-2014).  It was the 18th year in a row with above-average temperature.

A worldwide network of Argo floats gives scientists an unprecedented understanding of the ocean depths. Argo floats descend and ascend through the top 2,000 meters of the ocean, collecting observations as they move.

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