…save the world. That’s the title of my new article in March’s issue of BBC Sky At Night magazine. In the article I discuss how the aims of astronomers and environmentalists have converged. I argue that if we can reduce our wastage of light, create more efficient lighting fixtures and get councils and local authorities to dim or at least reduce their lighting usage then we can not only save the night skies but reduce our carbon emissions. Hopefully in doing so we can be a little less harsh on our environment. If you are concerned that these sorts of measures may result in a wave of criminals and ne’er-do wells sweeping the streets then it’s worth reading the material on this page on the Campaign for Dark Skies’ website.