"For the same demand, fast shipping definitely increases emissions 10 to 12 per cent," she said.To meet tight delivery windows, retailers may rely on air freight, which produces far more emissions than other options such as trains, making it the most carbon-intensive. Their goal is to make the journey fast and effective, but reduce its emissions at the same time. "Amazon says providing shipping options that encourage customers to consolidate orders have also helped. "While fast shipping isn't likely to go away, experts say its climate impacts can be meaningfully reduced through small behavior shifts, both from shoppers and companies. Bundling orders, skipping the overnight option and choosing a single weekly delivery can all make a difference.

Source: Economic Times December 24, 2025 13:43 UTC