How does the smell of the sea impact the world’s climate? This question lies at the heart of the Cyano-VOC research project where aerosol chemists collaborate with microbiologists to investigate the volatile organic compounds emitted by cyanobacteria and other plankton residing along the coastlines of the Baltic Sea. Follow Matt Salter and Sneha Aggarwal, Department of Environmental Science, Stockholm University, on a sampling campaign onboard R/V Electra in the area around the Askö Laboratory.