The historic agreement on climate change marked a major milestone on Friday with a record 175 countries signing on to it on opening day. But world leaders made clear more action is needed, and quickly, to fight a relentless rise in global temperatures.
With the planet heating up to record levels, sea levels rising and glaciers melting, the pressure to have the Paris Agreement enter into force and to have every country turn its words into deeds was palpable at the U.N. signing ceremony.
"The world is in a race against time," U.N. Secretary-General Ban Ki-moon said in his opening speech. "The era of consumption without consequences is over."