By Sohaib Shams
Australia has designated a seabed storage site off its northern coast where Japanese energy company Inpex plans to store up to 443 million metric tons of carbon dioxide, advancing a carbon capture technology that remains deeply contested among climate scientists.
Project Details and Scope
The site, located 260 kilometers offshore from Darwin in the Northern Territory, would inject CO2 into a deep saline aquifer called West Peron. Inpex says the primary customer will be the nearby Ichthys liquefied natural gas facility, which it majority-owns and which exports most of its gas to Japan. The project could permanently store emissions over 35 years, pending environmental impact assessments and further government licenses.
Government Support and Industry Rationale
Australian Resources Minister Madeleine King said the designation demonstrates government support for technologies that help reduce emissions from hard-to-abate industries such as steel production and shipping. Proponents argue carbon capture and storage will play an important role in Australia's transition to net zero, while the International Energy Agency forecasts it will contribute less than 5% of emission reductions by 2050.
Environmental Concerns and Opposition
Environmental groups warn the project overlaps habitats for threatened and migratory species including dugongs, turtles, and seabirds. Campaigner Chelsea Deng of the Australian Marine Conservation Society said construction would involve dredging, drilling, and pile-driving, causing sediment disturbance, water pollution, and underwater noise that harms marine life. Routine seismic surveys to monitor CO2 plumes could further damage ecosystems for decades.
Japan's Climate Strategy and CCS Expansion
Japan, one of the world's top polluters, aims to cut emissions by 60% by 2035 and 73% by 2040 from 2013 levels. Its government calls carbon capture indispensable for decarbonizing heavy industries like steel, cement, and shipping while maintaining energy security. Japanese companies are pursuing multiple CCS projects, including offshore storage near Chiba and plans to ship emissions to Malaysia.
