One of the most important challenges in modern society is to inspire and recruit young scientists to study natural sciences at university level. There are, however, strong indications that practical involvements and hands-on experiences are important fact ors to engage youths. One issue of importance today is to increase knowledge and consciousness about environmental issues, especially among teenagers. By allowing youths to participate with practical doing in a scientific project dealing with worldwide en vironmental spread of a major pollutant we hope to create both engagement and enthusiasm. Approximately 400 schools from the Arctic and world-wide will be invited to participate in a global project that aim to collect data on the levels of dioxin and diox in-like contaminants in locally caught fish used for human consumption. Most national and international food authorities encourage people to eat more traditional food and in particular fish due to the total benefits. However, an insight into the levels of dioxin and dioxin-like compounds in fish on a global scale is still essential in order to evaluate whether international agreements and regulations have resulted in decreasing levels. This knowledge is also valuable in order to give well-balanced recomme ndations for fish consumption in various areas of the world and the project will contribute substantially in this respect with a unique global dataset for dioxin-like levels in fish. The students will gain experience in scientific fish sampling and report ing, and should also be able to discuss and evaluate sources and transport of toxic chemicals, and the potential health implications given the tolerable intake values of dioxins and dioxin-like compounds in fish muscle set by the European commission, Worl d Health Organisation (WHO) and national authorities.