FILE - In this July 2, 2014, file photo, gasses billow from chimneys at a steel factory in Port Kembla, south of Sydney. Australia's Prime Minister Scott Morrison on Wednesday, April 21, 2021, proposed spending an additional 539 million Australian dollars ($417 million) on hydrogen and carbon sequestration projects in an announcement that bolsters his government's green credentials ahead of a climate summit to be hosted by U.S. President Joe Biden. (AP Photo/Rob Griffith, File)
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