About 4,150 Edmonton public school support workers are preparing to take strike votes after more than four years without current collective agreements.

Low wages that have stagnated in times of inflation, difficult working conditions and trouble agreeing on other concessions has created a "crisis" for school workers across the province, Canadian Union of Public Employees (CUPE) Alberta president Rory Gill said in an interview on Friday. 

"It's gone beyond a crisis toward a catastrophe," Gill said…