The Paris Agreement to tackle global warming could come into effect two years earlier than originally planned, the UN’s top climate official said on Monday.

“You heard it here first. I think we will have [it] in effect by 2018,” Christiana Figueres told an audience at Imperial College, London.

You heard it here first. I think we will have [it] in effect by 2018.”

Late in last December’s UN talks, a collective decision was made to scrub references to 2020 as a start date for the deal said Figueres, who leaves her post in July.

The deal saw 195 countries agree to limit warming to well below 2C above industrial levels, and target a new aspirational ceiling of 1.5C long argued for by small island states.