Indoor urban agriculture isn’t necessarily low carbon, McGill study shows (opens in new tab)

Growing lettuce indoors in Canadian cities can be as climate-friendly as conventional farming, but only in regions where electricity is from renewable sources and thus low-carbon, according to a new McGill-led study. Researchers found that, when powered by clean energy, controlled-environment urban agriculture (CE-UA) can produce lettuce whose carbon footprint is similar to that of lettuce grown and shipped from California. In Quebec, where electricity is largely generated by hydropower, indo...