Paris climate agreement poised to come into force

UN secretary general, Ban Ki-moon, predicts global climate deal will be fully ratified by the end of the year after 31 nations officially sign up in New YorkThe Paris climate agreement is on the brink of coming into force after 31 nations officially joined the landmark accord, with United Nations secretary general Ban Ki-moon predicting it will be fully ratified by the end of the year.On Wednesday, 31 countries formally signed up to the Paris deal at the UN general assembly in New York. They inc