Study: Global warming could cause price of beer to rise

A new study says global warming could cause the price of beer to go up.
The study was done at the University of East Anglia in England.
According to researchers, global warming could lead to farmers having trouble producing barley, the main ingredient in beer.
Analysts believe the price of beer could double worldwide.
The study predicts beer-loving countries such as Ireland could see six-packs cost an extra $21 each.