From Nature:

Vincent Kessler/REUTERS

UN Secretary General Ban Ki-moon and European Parliament President Martin Schulz smile after the European Parliament vote in favour of ratifying the Paris accord.

The Paris climate pact is set to enter into force as soon as next month, after the European Parliament voted on 4 October for the European Union to ratify the agreement.

The 2015 accord, which seeks to hold warming “well below” 2 °C above pre-industrial temperatures, must be ratified or otherwise formally joined by 55 countries accounting for 55% of global emissions to take effect. More than 60 countries, including China and the United States, have already joined the accord, and ratification by the EU, the world’s third-largest greenhouse-gas emitter, would push the pact past its other legal threshold.

The EU has previously agreed to cut its emissions by 40% by 2030, relative to 1990 levels. But each of the nation’s member states must ratify the Paris agreement separately, and observers feared that lack of consent among the bloc’s member states over their respective share to the EU-wide reduction target might delay the Paris pact until at least 2017. They had also worried that the United Kingdom’s decision to leave the EU might cause further delay.

In a surprise move, EU heads of states agreed last week that the bloc, which has long been pushing for international agreement on climate action, should move on a faster track. “It would have been very embarrassing for the EU, of all countries, to further delay the start of the Paris agreement,” says Oliver Geden, head of the EU Research Division at the German Institute for International and Security Affairs in Berlin.

As a result of Parliament’s vote, the EU is expected before the end of this week to formally submit its ratification documents to the United Nations …

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