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  1. Climate change ‘is the single greatest existential threat to humanity’ – Biden

    Climate change ‘is the single greatest existential threat to humanity’ – Biden

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  2. Biden: Climate Change Is 'The Greatest Threat to Humanity,' Blasts Skeptics in New Administration

    Biden: Climate Change Is 'The Greatest Threat to Humanity,' Blasts Skeptics in New Administration

    13
  3. Existential Threat?

    Existential Threat?

    1