Archive · 17 Jun 2025
Queuing System Reduces Ship Emissions by Up to 24%
During the pandemic, ships waiting at the port created a lot of pollution.
A new system was created where ships reserve their spot in line before arriving.
This allows them to go slower, like taking the scenic route, which uses less fuel and creates less pollution.
The program, which started in California, has already helped cut down on pollution from ships by up to 24% per voyage.
It's a low-cost way to help the planet.
A queuing system at Los Angeles and Long Beach ports reduced ship emissions by up to 24% per voyage.
The system allows ships to slow down, reducing fuel consumption and emissions.
Implemented in 2021, the system replaced a first-come, first-served approach.
Average ship speed decreased from 18.6 knots to 15.9 knots in 2022 and 17.6 knots in 2023.
The Port of Oakland and the Port of Rotterdam have adopted similar systems.
- Who
- Researchers and port officials.
- What
- A queuing system at the ports of Los Angeles and Long Beach has reduced ship emissions.
- When
- The queuing system was launched in 2021.
- Where
- Twin ports of Los Angeles and Long Beach in Southern California.
- Why
- To reduce carbon dioxide emissions from ships and improve efficiency.
Supporters
Critics
Effectiveness and Replication
Supporters
The queuing system has been successful in reducing emissions and is a cost-effective solution.
Critics
The program may not encourage slower speeds at all if there is no congestion problem.
Implementation
Supporters
This system is low cost, with potential for wide adoption.
Critics
Implementing this program might not be easy to replicate elsewhere.
- Emission Reduction
- Up to 24% per voyage
- System Cost
- ~$300,000 annually
- Vessel Speed Reduction (2022)
- 18.6 knots to 15.9 knots
- Vessel Speed Reduction (2023)
- 17.6 knots
- Ships participating
- Over 95%