HOUSTON, March 8, 2018 (Xinhua) -- U.S. Energy Secretary Rick Perry delivers a speech at the CERAWeek meeting in Houston, Texas, the United States, on March 7, 2018. The United States is embracing "new energy realism" with the help of industrial innovation and technological improvement, Rick Perry said in Houston on Wednesday. (Xinhua/Liu Liwei/IANS)

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