Refugees and migrants arrive on the Greek Lesbos island after crossing the Aegean Sea from Turkey on November 7, 2015. Nearly 500 people have died trying to cross the Aegean Sea from neighbouring Turkey this year, many of them in the narrow but treacherous stretch separating Lesbos from Turkey. AFP PHOTO / ARIS MESSINIS        (Photo credit should read ARIS MESSINIS/AFP/Getty Images)