Advocating for green ports and shipping involves embracing sustainable practices to minimize environmental impact. Market-based measures (MBMs) play a crucial role in steering the industry towards eco-friendly solutions by incentivizing the reduction of greenhouse gas (GHG) emissions through mechanisms like emission trading systems or carbon pricing. This advocacy fosters a commitment to environmental stewardship, encouraging the development and adoption of innovative technologies and practices within shipping and port operations. Actively promoting the integration of MBMs, stakeholders contribute to a collective effort aimed at achieving a more sustainable and environmentally conscious future for the maritime industry.