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ICCT life-cycle analysis finds no climate benefit in using LNG as marine fuel

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The results of a new analysis by the International Council on Clean Transportation (ICCT) show that, when combined with a trend toward higher methane leakage and combustion slip, there is no climate benefit from using liquefied natural gas (LNG) as a marine fuel—regardless of the engine technology. —Pavlenko et al.

Mariner 427
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IDTechEx: future of the electric ship industry lies with hybrid cargo vessels

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More than 1GWh of batteries are now sailing on waters globally, reflecting 72% industry growth in 2022, according to a new report from IDTechEx. Based on primary supplier interviews, it further shares technology analysis and price information on marine Li-ion battery systems ($/kWh 2020 - 2044) and electric propulsion systems.

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Consortium proposes large-scale industrial cultivation of marine microalgae (ICCM) as solution to global energy, food, and climate issues

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Members of the Marine Algae Industrialization Consortium (MAGIC), led by Duke University in North Carolina, have published an open-access paper in the journal Oceanography presenting the large-scale industrial cultivation of marine microalgae (ICMM) as an answer to pressing global energy, food and climate security issues.

Mariner 150
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CritMET team examines distribution of germanium and gallium in deep-sea crusts

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Germanium and gallium both are important raw materials for the semiconductor industry, for fiber optic cables and for photovoltaics. Gallium-aluminum systematics of marine hydrogenetic ferromanganese crusts: Inter-oceanic differences and fractionation during scavenging.” Source: Jacobs University). 2021.05.019. Ernst, D.M.,

Mariner 343
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Climate Expert: Don't Call It Geoengineering

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The leaders of the world have just returned from the UN's latest climate change summit, COP26 , in which the countries that have signed on to the Paris Agreement upped their commitments to fight climate change. C above pre-industrial levels. C above pre-industrial levels. In 2015, the U.S.

Climate 144
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Pilot Project Sends Kelp–and Carbon–to the Seafloor

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Last January, in the waters off Cebu City in the Philippines, researchers first deployed a huge flexible ring seeded with seaweed and spanned by spokelike ropes and tubes. Every nightfall, cranks mounted on a floating platform lower the ring 25 meters below the surface to expose the seaweed to cooler, more nutrient-rich water.

Carbon 128
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Ensuring Underwater Robots Survive in Hot Tropical Waters

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The hot, humid environment of tropical marine areas such as Australia’s Great Barrier Reef can wreak havoc on the marine autonomous systems. Underwater and surface MAS are used for marine monitoring, locating objects such as mines on the seafloor, and rescuing swimmers.

Water 92