UK Citizen ScienceUK-based volunteer contributions to citizen science make a huge impact on scientific research and policy, and cover a breadth of research areas, including cancer, Alzheimers, astronomy, weather patterns, noise and air quality monitoring. Volunteers engaged in biodiversity monitoring contribute time in-kind worth more than 20 million pounds, and can reduce the average time needed to complete a research project from 37 years to 2.4 years. For the volunteer community, citizen science offers a means by which to: contribute to scientific research; learn about, contribute data to and drive policy change on locally-relevant issues (e.g. air quality issues); learn new skills; and, participate in activities with family and/ or meet new people.