[slothtrop]

Almost nothing is entirely local. Even with foodstuffs, fertilizer feed and other supplies has to be transported from great distances. Whether something gets to its destination in a less energy-intensive way locally depends on the product. Plus it's more land-efficient (and therefore less hard on environment) for farmers to sell to a wider area.

You can of course give up luxuries if you want, but it's a pointless race to the bottom. Emissions go up because demand goes up in the developing world, not because you ordered coffee and chocolate. And of course that surge in demand is a reflection of an improved quality of life, i.e. living more like the West.

Since climate change is a short-run imminent problem, I agree that interventions of some sort alongside the innovation race are warranted. Here though, some are more impactful and politically viable than others. There is some low hanging fruit that governments can take advantage of, such as green grants for improving home insulation, dissuading purchase of SUVs (the gas-powered ones), greatly improving public transportation and zoning reform, etc.