Many people are concerned about the future, and indeed are actively working within their own sphere to do the things we need to do to create a positive future. Others are concerned, but do not have a clear idea of the kinds of changes we need to make in order to have a viable society in, say, 30 years. We are at a remarkable point of choice at this time in human history. The decisions and actions we take today will have huge consequences for young people alive now – some of whom may be reading this manual – and certainly for all grandchildren yet to be born. It is well established that our rate of ecological deterioration is worsening, not improving, despite local improvements in some areas. We are in a race between exponentially increasing environmental deterioration and people’s increasing desire to make the changes necessary to avoid collapse. Which will determine our future? Will we be the generation that fulfils humanity’s promise, or the generation that knowingly destroys the Earth?