Arctic sea smoke rises on the Royal River in Yarmouth, Maine, as a worker uses a push boat to break ice forming around a dredging operation, Wednesday morning, Jan 14, 2015. The temperature at sunrise was minus 8 degrees. Sea smoke occurs when extremely cold air passes over warmer water. (AP Photo/Robert F. Bukaty)
Arctic sea smoke rises on the Royal River in Yarmouth, Maine, as a worker uses a push boat to break ice forming around a dredging operation, Wednesday morning, Jan 14, 2015. The temperature at sunrise was minus 8 degrees. Sea smoke occurs when extremely cold air passes over warmer water. (AP Photo/Robert F. Bukaty)
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