The state of England's natural world and the sustainability of its society and the economy is due be published on Tuesday, tracking everything from bees, butterflies and birds to long-term unemployment, social mobility in adulthood, and knowledge and skills. The revised set of sustainable development indicators(SDIs) are designed to measure the health of the country beyond pure economic measurements such as GDP, and are published on the same day as the first annual results of David Cameron's "wellbeing index". Read More