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  • #sustainability | Campaigners find PFAS, which can contaminate the soil and water supply, in more than 80% of 27 companies’ products
    Saturday | View Shared by tom
  • 1 week ago | View Shared by tom
  • #sustainability | Natron Energy fell a little behind schedule on production plans for its sodium batteries but officially commenced production of the rapid-charging, long-life lithium-free batteries this week, bringing to market an intriguing new storage alternative.

    From wikipedia:

    After three decades of development, NIBs are at a critical moment of commercialization. Several companies such as HiNa and CATL in China, Faradion in the United Kingdom, Tiamat in France, Northvolt in Sweden,[5] and Natron Energy in the US, are close to achieving the commercialization of NIBs, with the aim of employing sodium layered transition metal oxides (NaxTMO2), Prussian white (a Prussian blue analogue[6]) or vanadium phosphate as cathode materials.[7]

    See also other types:

    https://www.abc.net.au/news/science/2023-02-02/vanadium-redox-flow-battery-and-future-of-grid-energy-storage/101911604

    https://www.wesa.fm/environment-energy/2024-02-19/weirton-form-energy-battery-manufacturing

    grid backup battery tech is arriving

    1 month ago | View Shared by tom
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  • #sustainability | For decades, concerns about automobile pollution have focused on what comes out of the tailpipe. Now, researchers and regulators say, we need to pay more attention to toxic emissions from tires as vehicles roll down the road.

    a car's tires emit 1 trillion ultrafine particles per kilometer driven—from 5 to 9 pounds of rubber per internal combustion car per year.

    More than three-quarters of microplastics entering the ocean come from the synthetic rubber in tires,

    Related is the damage done by heavier vehicles due to the fourth power law: https://en.wikipedia.org/wiki/Fourth_power_law

    A 30 ton truck is about 10,000 times more damaging to the road than a 2 ton car.

    1 month ago | View Shared by tom
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  • #sustainability | Whenever I buy things I try to prioritize cost per use. Sometimes I consider other priorities such as cost per smile, cost per thrill, cost per externality, ...
    2 months ago | View Shared by tom
  • #sustainability | probably not
    2 months ago | View Shared by tom

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