Last-mile delivery is becoming one of the fastest-growing sources of global greenhouse gas emissions, propelled by consumers’ desire to receive online purchases with next-day and same-day delivery. Yet most decarbonization efforts aimed at this sector lean heavily on technological fixes like electric vans and optimized routing, while disregarding the social consequences of that shift. The runaway growth of e-commerce is doing double damage: it is accelerating dangerous GHG pollution even as it undermines the conditions for a fair transition for the workers and communities caught up in it.  

Why This Matters 

The scale is large and growing fast: last-mile delivery is one of the fastest-growing sources of global emissions, yet this segment already accounts for nearly 43% of a fulfillment pathway’s total CO2-equivalent footprint. 

Tech-only fixes miss half the problem: most decarbonization strategies focus narrowly on EVs and route optimization while ignoring the workers and communities affected by the transition; risking “solutions” that shift burdens rather than resolve them (carbon leakage, maladaptation, top-down change without buy-in). 

Combining frameworks makes climate action more effective, not just fairer: pairing just transition principles (who bears costs and benefits) with life cycle thinking (tracking impacts across the full system) makes solutions both more equitable and more operationally sound. 

The numbers make clear why last-mile logistics deserves far more scrutiny than it currently gets. Emissions generated across a company’s supply chain are, on average, 11.4 times larger than its direct operational emissions, showing that the real climate footprint of goods movement lives far outside corporate walls. Zooming out further, logistics as a whole accounts for roughly 7% of global GHG emissions, and freight transport alone contributes about 8% of global CO2 emissions. Road freight is a particularly outsized contributor: it makes up just 15% of freight activity worldwide but is responsible for 44% of the sector’s CO2 emissions.  

Left unchecked, this problem will worsen: The World Economic Forum projects that the number of delivery vehicles in major cities will grow by 36% by 2030, driving a corresponding 32% increase in emissions. Last-mile activities already account for nearly 43% of the CO2-equivalent emissions tied to an entire fulfillment pathway, encompassing everything from e-fulfillment centers and manufacturer transport to packaging and the ICT behind online purchases.  

The vehicle question matters enormously here. Delivering one ton of parcels via diesel fleet emits somewhere between 33 and 44 kg of CO2-equivalent; switching to electric vehicles can cut that figure by 37% to 50%, depending on traffic conditions, though daily totals still range widely, all the way from 290 to 457 kg CO2-equivalent. Even at the city scale, the effect is measurable: last-mile delivery alone has been estimated to represent 5.3% to 5.8% of the total CO2-equivalent emissions tied to a city’s entire food system over the course of a year.  

Despite the scale of these numbers, our collective understanding of last-mile logistics’ environmental burden remains surprisingly thin, and only a handful of studies bring a genuine life cycle perspective to bear on the problem. Compounding this, decarbonizing the last mile means navigating real tensions between operational efficiency and sustainability commitments, all while consumers continue to expect, and often demand, ever-faster delivery windows.  

This is where the just transition framework becomes essential rather than optional. Bringing a just transition lens into decarbonization planning doesn’t just add a social justice dimension for its own sake; it can genuinely improve the operational feasibility of climate solutions by surfacing synergies between environmental targets and social goals. That might mean opening a real social dialogue with the communities affected by logistics infrastructure, or deliberately steering away from maladaptive choices that solve one problem while creating another.  

At its core, a just transition requires building sustainable systems deliberately and inclusively pairing a fair phase-out of high-emission systems with genuine investment in what comes next, rather than rushing toward new technologies without regard for social consequences, or imposing top-down changes that leave affected workers and communities out of the decision-making process. 

A promising approach is combining just transition principles with life cycle thinking, which together offer a genuinely systemic view of both the social and environmental dimensions of change. Just transition contributes a framework for fairness and equity, asking who bears the costs and who reaps the benefits of any given intervention. Life cycle thinking tracks a system across its entire lifespan, supporting an integrated, comprehensive, and participatory approach to transition.  

Used together, these two frameworks help avoid some of the most common pitfalls in climate strategy: double-counting emissions reductions, carbon leakage where emissions are simply displaced rather than eliminated, and the broader risk of shifting environmental burdens elsewhere or inadvertently creating new problems altogether. Critically, this combined approach surfaces side effects that a single-lens analysis would miss, including social impacts and knock-on effects for urban mobility.  

Combined, these approaches reiterate that decarbonizing the last mile can’t be treated as a purely technical exercise. Real, lasting progress will require pairing life cycle rigor with a just transition mindset, one that takes seriously the workers, communities, and social systems entangled with how packages reach our doors.