The Paris climate change talks opened with pledges worth billions of dollars from dozens of heavily guarded world leaders yesterday.
But the outpouring of promises to tackle a problem that Barack Obama, US president, said could “define the contours of this century more dramatically than any other” was tinged by anxiety about whether the two-week meeting would strike a robust agreement.
The memory of the attacks that killed 130 people in Paris on November 13 lent a sombre tone to the opening of the talks at the Le Bourget airfield which are due to produce what would be the first global climate accord in 18 years.
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