Obama tells Coast Guard grads climate change threatens US

Updated: 2015-05-21 09:58

(Agencies)

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Obama tells Coast Guard grads climate change threatens US

Graduates toss their caps in the air at the closing of the 134th Commencement Exercises of the United States Coast Guard Academy in New London, Connecticut, May 20, 2015. US President Barack Obama attended the ceremony and delivered a speech on climate change. [Photo/Agencies]