Within this appeal, UNICEF operations require almost $50 million in 2017 as well as $30 million each year from 2018-2020 to provide critical health care, nutrition, water and sanitation, education, early childhood development, adolescent development, and child protection interventions, for both refugee and host community children.
The Syrian conflict, which has killed more than 320,000 people, "is becoming a forgotten crisis", warned Grandi.
They said the "disastrous breakdown of peace efforts" last summer significantly worsened the situation since the report was compiled.
The UN refugee chief also voiced alarm over the rapidly deteriorating situation in South Sudan, which he said was now the world's "fastest growing refugee crisis and displacement crisis". The majority of today's refugees live in the developing world, which means that they flee to countries already struggling with poverty and hardship.
Since fighting broke out four years ago in the world's youngest nation, an estimated 2 million South Sudanese have been internally displaced, according to the International Organization of Migration.
Around two thirds of refugees find themselves in a "protracted refugee system;" when at least 25,000 refugees of the same nationality have been in exile in a particular nation for five years.or refugees who have been displaced for over five years. In total, 189,300 refugees were accepted for resettlement by 37 different countries.
These people are classified as internally displaced people. South Sudan, with a little over a quarter, has the next-biggest proportion, the agency said.
"But fear and exclusion will not lead us to a better place - they can only lead to barriers, alienation and despair", he stressed. There are 7.7 million displaced Colombians, 4.7 million Afghans and 4.2 million Iraqis.
The Senate rejected a motion by the Greens calling for all asylum seekers on Nauru and Manus Island to be brought to Australia.
The UN report also highlighted attempts by refugees and migrants to seek safety by crossing the Mediterranean to reach Europe. Then there are asylum-seekers who have fled their country but haven't been granted refugee status.
The refugee population from the world's youngest country swelled 85 percent previous year to reach 1.4 million by the end of 2016, the UNHCR report showed. Pakistan comes second with a total refugee population of 1,505,525, followed by Lebanon, which hosts 1,154,040 refugees mainly from Syria.
Across the world, the number of displaced people had risen by 300,000 by the end of 2016 from a year earlier - though the pace of the increase had eased from past years, the UNHCR report said.
According to UNHCR, a refugee is someone who has been forced to flee his/her country because of persecution, war, or violence. Some 6.5 million internally displaced people returned to their hometowns a year ago.
People around the world observed World Refugee Day Activities to encourage the protection of refugees.
Most fled the conflict in South Sudan.
"The displaced persons deserve to continue with their education and provided with economic support for safe living conditions". The 39-year-old mother of eight said she was chased by men with guns when she went out to collect firewood.
"The global neglect that you see here is matched nowhere else in the world", Grandi told The Associated Press. If you would like to discuss another topic, look for a relevant article.
One potential solution is to admit some skilled, educated refugees through Canada's economic class immigration program, he said. "I was hoping South Sudan wouldn't need UNHCR any more".style="text-align: center;"