What is left behind

A pair of jeans from a refugee child is seen on a beach at the Greek island of Lesbos November 16, 2015. REUTERS/Yannis Behrakis

A wheelchair left by a refugee is seen in front of an old abandoned beach house which is used by refugees as they wait to board a dinghy sailing off for the Greek island of Chios, while they try to travel from the western Turkish coastal town of Cesme, in Izmir province, Turkey, November 6, 2015. REUTERS/Umit Bektas

A damaged passport from the Republic of Guinea is seen lying on the ground on the path migrants walked to cross the border into Croatia, near Sid, Serbia, October 2, 2015. REUTERS/Dado Ruvic

A boat full of life jackets left behind by refugees and migrants is seen on a beach as a rainbow fades away, on the Greek island of Lesbos, November 10, 2015. REUTERS/Alkis Konstantinidis

An abandoned teddy bear is seen on the ground close to the Croatian border near the village of Berkasovo, Serbia, September 29, 2015. REUTERS/Antonio Bronic

A baby jacket is seen on a street next to a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A beanie hat of a refugee child is seen on a beach at the Greek island of Lesbos November 16, 2015. REUTERS/Yannis Behrakis

An abandoned stroller stands next a rail track at the train station in Tovarnik, Croatia September 21, 2015. REUTERS/Antonio Bronic

A toothbrush is seen on a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

Lifejackets hang on a tree on a beach where refugees and migrants arrived on dinghies, with the coasts of Turkey seen in the background, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A packet of cigarettes is seen on a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A baby carrier hangs on a fence next to a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A paper with details of a flight from Dubai to Istanbul is seen on a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A pair of baby shoes are seen on a beach where refugees and migrants arrived on dinghies, on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

A passport photo left behind by a migrant is seen among seaweed on a beach on the Greek island of Lesbos, September 14, 2015. REUTERS/Alkis Konstantinidis

Stuffed animals are seen among possessions left behind by migrants and refugees after a rainstorm at the border crossing between Greece and Macedonia, near the Greek village of Idomeni, September 10, 2015. REUTERS/Yannis Behrakis

Migrants' belongings, including a child's buoyancy ring, litter the deck of a wooden boat from which migrants were rescued off the coast of Libya, August 6, 2015. REUTERS/Darrin Zammit Lupi

High heeled shoes are seen among possessions left behind by migrants and refugees after a rainstorm at the border crossing between Greece and Macedonia, near the Greek village of Idomeni, September 10, 2015. REUTERS/Yannis Behrakis

Belongings of migrants are pictured in an underground station at the Keleti trainstation in Budapest, Hungary, September 4, 2015. REUTERS/Leonhard Foeger

Life jackets are seen abandoned by Syrian refugees on a beach after they crossed the Aegean Sea in a dinghy from Turkey to the Greek island of Kos, August 8, 2015. REUTERS/Yannis Behrakis