For the month of August, we’re highlighting episodes from the 2025-2026 season of Energy Policy Now. We’ll be back with new content, and a new season, on September the 8th.

An economic sociologist discusses the growing heat dangers facing last-mile delivery drivers, and why federal protections remain stalled.

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E-commerce has transformed the way goods move through the American economy, driving unprecedented growth in parcel deliveries and intensifying competition among major carriers and the U.S. Postal Service. Yet this push for speed and volume now unfolds amid longer, more intense heat waves, exposing the nation’s roughly 1.5 million delivery drivers to climate-driven temperature extremes that pose growing risks on their routes.

In this episode, economic sociologist and Kleinman Center faculty fellow Steve Viscelli discusses how rising heat intersects with the structure of the delivery industry. He describes the job conditions that can leave drivers vulnerable, from demanding routes to the use of monitoring technologies that encourage workers to stay on pace even when temperatures climb.

Viscelli looks at the policy landscape that shapes these conditions, explains why federal heat protections for workers have been slow to materialize, and how this reality affects drivers’ day-to-day experience. He also points to steps some states are taking to set their own standards to address hotter and more demanding delivery seasons.

Steve Viscelli is an economic and political sociologist at the University of Pennsylvania and a faculty fellow with the Kleinman Center for Energy Policy.

Related Content:

Energy System Planning: New Models for Accelerating Decarbonization https://kleinmanenergy.upenn.edu/research/publications/energy-system-planning-new-models-for-accelerating-decarbonization/

Who Buys Down the Risk When Federal Funding Recedes? https://kleinmanenergy.upenn.edu/commentary/blog/who-buys-down-the-risk-when-federal-funding-recedes/

Energy Policy Now is produced by The Kleinman Center for Energy Policy at the University of Pennsylvania. For all things energy policy, visit kleinmanenergy.upenn.edu.

For the month of August, we&rsquo;re highlighting episodes from the 2025-2026 season of Energy Policy Now. We&rsquo;ll be back with new content, and a new season, on September the 8th.
An economic sociologist discusses the growing heat dangers facing last-mile delivery drivers, and why federal protections remain stalled.
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E-commerce has transformed the way goods move through the American economy, driving unprecedented growth in parcel deliveries and intensifying competition among major carriers and the U.S. Postal Service. Yet this push for speed and volume now unfolds amid longer, more intense heat waves, exposing the nation&rsquo;s roughly 1.5 million delivery drivers to climate-driven temperature extremes that pose growing risks on their routes.
In this episode, economic sociologist and Kleinman Center faculty fellow Steve Viscelli discusses how rising heat intersects with the structure of the delivery industry. He describes the job conditions that can leave drivers vulnerable, from demanding routes to the use of monitoring technologies that encourage workers to stay on pace even when temperatures climb.
Viscelli looks at the policy landscape that shapes these conditions, explains why federal heat protections for workers have been slow to materialize, and how this reality affects drivers&rsquo; day-to-day experience. He also points to steps some states are taking to set their own standards to address hotter and more demanding delivery seasons.
Steve Viscelli is an economic and political sociologist at the University of Pennsylvania and a faculty fellow with the Kleinman Center for Energy Policy.
Related Content:
Energy System Planning: New Models for Accelerating Decarbonization <a href="https://kleinmanenergy.upenn.edu/research/publications/energy-system-planning-new-models-for-accelerating-decarbonization/">https://kleinmanenergy.upenn.edu/research/publications/energy-system-planning-new-models-for-accelerating-decarbonization/</a>
Who Buys Down the Risk When Federal Funding Recedes? <a href="https://kleinmanenergy.upenn.edu/commentary/blog/who-buys-down-the-risk-when-federal-funding-recedes/">https://kleinmanenergy.upenn.edu/commentary/blog/who-buys-down-the-risk-when-federal-funding-recedes/</a>
Energy Policy Now is produced by The Kleinman Center for Energy Policy at the University of Pennsylvania. For all things energy policy, visit kleinmanenergy.upenn.edu.

Energy Policy Now offers clear talk on the policy issues that define our relationship to energy and its impact on society and the environment. The series is produced by the Kleinman Center for Energy Policy at the University of Pennsylvania and hosted by energy journalist Andy Stone. Join Andy in conversation with leaders from industry, government, and academia as they shed light on today's pressing energy policy debates.

Energy Policy Now

Energy Policy Now offers clear talk on the policy issues that define our relationship to energy and its impact on society and the environment. The series is produced by <a href="https://kleinmanenergy.upenn.edu/podcast/">the Kleinman Center for Energy Policy</a> at the University of Pennsylvania and hosted by energy journalist Andy Stone. Join Andy in conversation with leaders from industry, government, and academia as they shed light on today's pressing energy policy debates.

An economic sociologist discusses the growing heat dangers facing last-mile delivery drivers, and why federal protections remain stalled.