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Climate summit: Grappling with the 'existential threat of our time'
US vows bold action but its credibility has been eroded, and rivals have their own views.
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The Biden administration is considering pledging to cut emissions in the US by around 50 per cent below 2005 levels by 2030.
PHOTO: BLOOMBERG
WASHINGTON - US President Joe Biden has repeatedly described climate change as "the existential threat of our time" and vowed to deal with it urgently.
Next week, he will do so by taking the most high-profile action of his presidency so far, by hosting a two-day virtual summit that brings together the world's leaders to spur efforts to tackle the crisis.
