The following statement of support from ministers is on the DfE website:
The government is fully committed to sustainable development and the importance of preparing young people for the future. Our approach to reform is based on the belief that schools perform better when they take responsibility for their own improvement. We want schools to make their own judgements about how sustainable development should be reflected in their ethos, day to day operations and through education for sustainable development. Those judgements should be based on sound knowledge and local needs. The good practice materials that underpin the national framework for sustainable schools are available through the department's website"
Good. Just what was needed; well done to Janice Lawson and Louise Jordan. The "about how" in the third sentence is hugely significant when compared to the existing default position of "about whether".