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Oleophobic hydrophobic magnetic sponge selectively soaks up oil, sparing water and wildlife

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A Northwestern Engineering-led team has developed a highly porous smart sponge that selectively soaks up oil in water. With an ability to absorb more than 30 times its weight in oil, the sponge could be used to clean up oil spills inexpensively and efficiently without harming marine life. —Vikas Nandwana. —Vikas Nandwana.

Water 243
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USC study shows promising potential for giant-kelp-based biofuel with depth-cycling approach

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physically moving the macroalgae between deep nutrient-rich water at night and shallow depths within the photic zone during the day to optimize growth. 13 C values suggesting that the depth-cycled kelp were not nitrogen-deficient and assimilated nutrients from deep water. The researchers used a depth-cycling approach—i.e.,

Mariner 468
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Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

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New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., For many years, we’ve flagged the fact that scrubbers account for disproportionately large emissions of hazardous and acidifying substances into the marine environment.

Exhaust 170
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Study finds twice as many cellulose fibers as microplastics in the Atlantic Ocean

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A study by three French institutes—Ifremer, the University of Bordeaux and the IRD (a public research institution)—has found that the surface water of the Atlantic Ocean is twice as polluted by cellulose fibers as it is by microplastics. —Christophe Maes.

Pollution 445
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Rolls-Royce and Robert Allan present world’s first LNG-powered shallow-water push boat

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Rolls-Royce and Canadian vessel designers Robert Allan have developed the world’s first shallow-water push boat powered by LNG natural gas engines. LNG (liquefied natural gas) is gaining traction in maritime circles, enabling operators to reduce emissions that are harmful to the environment and to the climate.

Water 195
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Honda establishes Marine Science Foundation

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Inspired by the Japanese concept of sato-umi —the convergence of land and sea where human and marine life can harmoniously coexist—Honda has established the Honda Marine Science Foundation , a new initiative to address marine ecosystem restoration and the impact of humans and climate change on oceans and intertidal areas.

Mariner 150
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EPA, US Coast Guard to enforce air pollution requirements for vessels operating in US waters

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Coast Guard (USCG) will jointly enforce US and international air pollution requirements for vessels operating in US waters. The large marine diesel engines that provide propulsion and auxiliary power on many ocean-going vessels emit significant amounts of pollution. Earlier post.). million tons per year.

Pollution 230