DEAD FISH TO POWER CRUISE SHIPS
Dead fish to power cruise ships in a new scheme to use green energy for polluting cruise liners.
According to a report in The Guardian, the leftovers of fish processed for food and mixed with other organic waste will be used to generate biogas, which will then be liquefied and used in place of fossil fuels by the expedition cruise line Hurtigruten.
The Guardian says that heavy fossil fuels used by ocean-going transport are an increasing problem as they are even more polluting than fuels for land-based vehicles, emitting sulphur and other contaminants. The fuels contribute to air pollution as well as to climate change. Converting vessels to use biogas will cut down on pollutants and reduce greenhouse gas emissions.
Hurtigruten operates a fleet of 17 ships, and by 2021 aims to have converted at least six of its vessels to use biogas, liquefied natural gas – a fossil fuel, but cleaner than many alternatives – and large battery packs, capable of storing energy produced from renewable sources.
The 125-year-old company, based in Norway, operates cruises in the Arctic and Antarctic, both highly sensitive environments.
Biogas can be generated from most forms of organic waste by speeding up and harnessing the natural decomposition process to capture the methane produced. Organic waste is produced by all food industries but is frequently disposed of in landfill, where it contributes to greenhouse gas emissions as it decomposes.
Hurtigruten is currently building three new hybrid-powered cruise ships in Norway, to be delivered in the next three years.