ACO formed a working group with The National Trust for Canada to monitor heritage-impact assessment process for 29-wind-turbine project it opposed in the Loyalist landscape of South Marysburgh.

ACO also introduced the community to a local filmmaker, who produced accurate animations of the visual impact of selected turbines. July 2015 – for the first time in Ontario – the Provincial government denied approval of two turbines because of negative visual impacts. Subsequent community group appeal to the Environmental Review Tribunal was successful in removing eighteen turbines to protect the Blanding's Turtle. Community continued legal action at the Ontario Superior Court of Justice for cancellation of the remaining nine turbines surrounding Milford.

July 10, 2018, White Pines Wind Project Termination Act, retroactive to July 10, promised by new Premier of Ontario, Doug Ford and Todd Smith, MPP Prince Edward-Hastings, received Royal Assent July 25, 2018. Estimated cost of cancellation to Ontario taxpayers, $100m.