Each year, the federal government sends $35 billion in economic aid to 140 countries. By comparison, U.S. residents send $123 billion in remittances overseas.
The charity says the EU cannot delegate responsibility to Turkey.
The U.N. found that some of the deported refugees were denied the chance to claim asylum.
European states have tightened border controls in recent months.
The aid group says that at least eight members of staff are missing after four strikes on the complex.
The budget is more than double the $8.7 billion mooted by the German government in November.
A look at why today's U.N appeals have trebled since 2005's $5 billion.
Unfortunate timing meant key officials were overseas just as Cyclone Pam hit.
UNICEF is launching its largest appeal for funds ever to help children at risk from crises such as the Ebola outbreak and fighting in Syria and Ukraine.
It is unclear how much of the $7 billion Obama pledged has actually been spent
Writer Alex Perry discusses the challenges of reporting on the vast and diverse continent and the growth of the humanitarianism movement.
"Out of this conference must come not just money but a renewed commitment from everybody to work for peace."
For Ukrainians in the Donetsk and Luhansk regions, life is a warzone
Suspicions heightened as Russian trucks avoid Kiev-held border post and head for rebel crossing
An aid organisation has announced that they will seek to break the naval blockade four years after Mavi Marmara incident
Increasing the national debt was cited as the reason for blocking emergency aid to Israel
Divisions among world powers that have crippled peacemaking are also denying U.N. staff the power to defy Syrian officials and push into neighborhoods now under siege.