Green Sea Guard provides and installs equipment to monitor ship emissions, gathers emissions data by telemetry, and provides advanced analysis of that data. This supports compliance acceptance, fuel evaluation, performance profiling and engine diagnostics. Additionally, emissions monitoring and analysis can support testing of emission reduction effectiveness, and predictive maintenance of ship engines. The data from the shipboard equipment is transmitted to an on-shore server and made available via a secure web portal. These services benefit ship owners, ship crews, and agencies such as coast guards and port authorities.