For the bit about local, it's worth noting here that the difference is substantially less than one might expect. Transport is a surprisingly small portion of emissions and environmental impact

Transport is a small contributor to emissions. For most food products, it accounts for less than 10%, and it’s much smaller for the largest GHG emitters. In beef from beef herds, it’s 0.5%.

Not just transport, but all processes in the supply chain after the food left the farm – processing, transport, retail and packaging – mostly account for a small share of emissions.

This data shows that this is the case when we look at individual food products. But studies also shows that this holds true for actual diets; here we show the results of a study which looked at the footprint of diets across the EU. Food transport was responsible for only 6% of emissions, whilst dairy, meat and eggs accounted for 83%

https://ourworldindata.org/food-choice-vs-eating-local

[–] Abel@lemmy.nerdcore.social 1 points 1 year ago* (last edited 1 year ago)

I always thought the party of sourcing from local wasn't transport but supporting your local economy and small producers, keeping the money within your city and raising buying power for its citizens.