HUNDREDS of concerned campaigners have criticised plans to build thousands of homes on Oldham's greenbelt, labelling it "an environmental disaster" and "dangerous" for the area.<br/><br/>The Greater Manchester Spatial Framework (GMSF) sets out a plan to provide housing and investment opportunities for sustainable growth over the next 20 years.<br/><br/>It outlines a need for an additional 227,200 new homes across Greater Manchester by 2035, including 13,700 (6 per cent of the total