Water pollution is increasing globally with both known and unknown impacts on ecosystems and human health, causing at least 1.8 million deaths per year according to The Lancet Commission on pollution and health. Rivers, so close to our daily life, convey and transform not only water but the nutrients and pollutants they received from the landscape. High concentrations of nutrients may also act as pollutants damaging freshwater ecosystems through processes of eutrophication. Obviously, the potential impacts of nutrients and pollutants depends on how much water river is conveying, also under changing climates and anthropogenic stress. There is a huge knowledge gap for both understanding the processes involved. Thus, this project referred to estimating how synchronous the inputs of water, carbon, nitrogen and phosphorus are across the UK and Europe, how and why it might be changing. It will provide deeper insights into the functioning of river ecosystems, priorities in pollution and water management.