FORMAL notice has been served by the GMB that councils in Scotland could face a wave of winter strikes, starting in Glasgow during the Cop26 summit next month.

Local authority body Cosla were given until Monday by the union to increase a pay offer, which was overwhelmingly rejected by cleansing staff last week, with confirmation of walkouts coming on that night. 

GMB said that an offer of an £850 wage increase for staff falls far short of the £2,000 pay claim that was submitted jointly by the trade unions GMB, Unison and Unite.