Rémi Bougault presents the challenges of energy by 2050 About thirty people attended, on a Saturday evening, a conference by Rémi Bougault, research director at the CNRS in Caen, on energy prospects for 2050. The speaker began by taking stock of production, consumption and energy needs. He recalled that these needs were expected to increase with population growth and economic development. He then presented fossil fuels, nuclear and renewable energies, exposing their strengths and disadvantages. The objective was to give the public figures and elements of understanding so that everyone could form an opinion. With a view to sustainable development, Rémi Bougault also stressed the need to control greenhouse gas emissions. He concluded with examples of modest gestures at the individual level that, when combined, could contribute to saving resources. Archive image: https://vierville.cordelle.eu/PhDoc16/2012-Mars16%20ConfBougault-RB.jpg