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Stanford researchers make ammonia from air and water microdroplets

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Stanford researchers, with a colleague from King Fahd University of Petroleum and Minerals, have developed a simple and environmentally sound way to make ammonia with tiny droplets of water and nitrogen from the air. Water microdroplets are the hydrogen source for N 2 in contact with Fe 3 O 4. The conversion rate reaches 32.9 ± 1.38

Water 459
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Study finds direct seawater splitting has substantial drawbacks to conventional water splitting, offers almost no advantage

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A study by a team of researchers from Technische Universität Berlin (TUB) and Fritz-Haber-Institut der Max-Planck-Gesellschaft has found that direct seawater splitting for hydrogen production has substantial drawbacks compared to conventional water splitting and offers almost no advantage. Additionally, H 2 O is needed for water splitting.

Water 497
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ICL briefing paper estimates that 52% of all small particle pollution from road transport comes from tires and brakes

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A new briefing paper from Imperial College London estimates that in 2021, 52% of all small particle pollution from road transport came from tires and brakes. Tire wear particles pollute the environment, the air we breathe, the water run-off from roads and has compounding effects on waterways and agriculture.

Pollution 243
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UNEP and partners launch Global Initiative for Resource-Efficient Cities; role of public transport

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The United Nations Environment Programme (UNEP) and partners have launched a new initiative that aims to reduce pollution levels, improve resource efficiency and reduce infrastructure costs in cities across the world. Up to 80% of the world population is expected to reside in cities by 2050.

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

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A deep-sea ferromanganese crust, a potential unconventional resource of critical high-technology metals. Although it is controversial because of its unclear effects on the environment, it could supply large amounts of the many metals without which, for example, climate policy goals such as the energy transition cannot be realized.

Mariner 343
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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. Ytreberg et al.

Exhaust 170
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UCSD/Sapphire team shows marine algae can be engineered to perform as well as fresh water algae to produce enzymes and biofuels; removing the constraint of fresh water

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have demonstrated for the first time that genetically engineered marine algae can be just as capable as fresh water algae in producing industrially relevant products such as enzymes or biofuels. What our research shows is that we can achieve in marine species exactly what we’ve already done in fresh water species. Earlier post.).

San Diego 299