FlowPhotoChem is a multi-national, EU-funded research project that is developing new and better ways to manufacture chemicals using carbon dioxide (CO2) and sunlight. There is great potential to replace much of the fossil fuels used today to make fuels and useful chemicals, by using solar energy and advanced catalysts to convert CO2 into, for example, ethylene, as a precursor for plastics. FlowPhotoChem addresses the key challenges to achieving this – more effective solar light management, more efficient reactors, and more durable catalysts.