this post was submitted on 14 Oct 2024
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Inaccurate statement.
https://qz.com/2113243/forty-percent-of-all-shipping-cargo-consists-of-fossil-fuels
40% of traffic is for petrochemicals, which according to this article is coal, oil, gas, and things derived from them, which would include fertilizer and plastics and probably some other stuff too like industrial lubricants, asphalt etc. Not just fossil fuels, so not all that 40% would be affected by a switch to renewable energy. It's also worth noting that building out renewable energy generation involves shipping a lot of hardware around the globe as well.
localizing and streamlining production is a bigger factor to climate change anyway imo
technology and production should absolutely not be as centralized and wasteful as it currently is.
These are two distinct goals, sometimes that work against each other. Localization is often a tradeoff between saving energy on transport and logistics versus economies of scale in production, and the right balance might look different for different things.
The carbon footprint of a banana shipped across the globe is still far less than that of the typical backyard chicken, because the act of raising a chicken at home is so inefficient (including with commercially purchased feed driven home in a passenger car) that it can't compete on energy/carbon footprint.
There are products where going local saves energy, but that's not by any means a universal correlation.