Pope Francis in Washington
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Pope Francis in US: 'Critical moment' on climate change

Pope Francis has called for further action on climate change saying that it was "a critical moment of history", on the first day of his visit to the US.

Speaking to a crowd of more than 11,000 people on the White House South Lawn, the pontiff said the problem could "no longer be left to a future generation".

  • 23 Sep 2015
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