The UN General Assembly approves Migration pact
152 votes in favour, 5 against and 12 abstained
Support for populists in Europe triples in past 20 years, study reveals
Populists have increased their share from 7 percent in 1998 to a fourth of ballots cast this year
Austria follows US and Hungary in withdrawing from UN migration pact
There are concerns it will blur the line between legal and illegal migration