Martin Kernan is an environmental scientist at the Environmental Change Research Centre, University College London. He has worked extensively on upland lakes and streams across Europe. His current research interests include the effects of atmospheric pollution and climate change on freshwater ecosystems. He was scientific co-ordinator on the Euro-limpacs Project. Rick Battarbee is Emeritus Professor of Environmental Change at University College London with research interests in the use of diatom analysis and palaeolimnology in understanding lake ecosystem dynamics on decadal time-scales. He is a Fellow of the Royal Society and Foreign Member of the Norwegian Academy of Science and Letters. He has published over 200 research papers, including eight in Nature. He is chair of the International Paleolimnology Association and was presented with the Ruth Patrick Award for Environmental Problem Solving by the American Society for Limnology and Oceanography in 2009. Brian Moss has been Holbrook Gaskell Professor of Botany at the University of Liverpool since 1989 and a freshwater ecologist for many years. He has held posts in Malawi, the USA and UK and has taught or carried out research on six continents over forty-five years. He is an experimentalist whose current research involves eutrophication, lake restoration and climate change and, in addition to the conventional long list of papers in learned journals, he has published a well-known text book on the Ecology of Freshwaters, and a New Naturalist book on 'The Broads'. He is also much concerned with wider global environmental problems and how art and poetry might be used to get over messages about the environment to the wider public. He has been President of the British Phycological Society, Vice-president of the British Ecological Society and editor of the Journal of Ecology, and recently was

elected President of the International Association for Limnology. He was awarded the Association's Naumann-Thienemann Medal in 2007 for his research and leadership in creating new understanding of shallow lake function. Despite all this he would want to be remembered as a non-establishment, liberated iconoclast.