US President Obama
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COP21: Obama on risk of 'submerged countries, abandoned cities'

US President Barack Obama has outlined a vision of the world that includes "submerged countries, abandoned cities and fields that no longer grow", if efforts to halt global warming are not stepped up.

He was speaking at the Paris climate conference, known as COP21, where more than 150 world leaders have converged for two weeks of talks.

  • 30 Nov 2015
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