Climate Cast: How hurricanes impact supply chains



You probably know. The Atlantic hurricane season officially starts June first. But Did you know twenty twenty marks. The sixth consecutive year a tropical cyclone has formed before the official June. First start date this year. Tropical Storm Arthur formed on May sixteenth. The science shows climate change and warmer oceans are extending traditional hurricane seasons and turbo charging hurricane intensity but when hurricanes hit land. How can they impact supply chains to cities? Chris Sughrue is a researcher with the Yale School of Forestry and Environmental Studies Chris. Welcome to climate cast a LO. Thanks for having me. What's an example of how a past hurricane landfall has impacted the supply chain? A really interesting example comes from Hurricane Katrina following that storm there was major devastation throughout New Orleans. But we also saw the this lead to regional impacts throughout the American south on various economic sectors due to shortages of materials and subsequent changes in employment as people left New Orleans in a move to other parts of the south. So what are we learning about the kinds of things that get impacted whether it's a hurricane or a pandemic and obviously supply chain been a big topic of conversation lately with covid nineteen. What do we know about how these supply chains are impacted by these economic disaster shocks? Yeah absolutely I think these kinds of ripple effects that we're talking about with cyclones also some parallels with what's going on with nineteen for example what we've learned is that bottlenecks in the production network are responsible for creating some of the the largest cascading effects that we're really concerned about likewise what we found is that cities are differentially affected by the spread of these impacts based on how they're connected to other cities for example smaller cities that have access to fewer economic relationships. Fewer industrial suppliers are more likely to be affected by the bottleneck dynamics that I just spoke about impart because they have fewer suppliers to alternate their demand to in times of shocks and so one of the things. We're learning is that it's really not just that. These shocks emerge because cities are globalized in more interconnected. But it's actually the manner in which these cities are connected. That play a big role in shaping. How these vulnerabilities emerge in which cities are most likely to be adversely affected? We often think of as costly with negative impacts. And we know that's true in many cases but do some companies and sectors profit from disasters. Yes so this is a pretty widely debated topic but we see for example that sectors like the construction sector enjoy some boost productivity following major disasters. We see in in this work that the position of cities network also has some impact on whether the spread of secondary impacts following a disaster or are adverse or beneficial so for example some regions are situated in the network such that they are less exposed to direct effects of natural disasters but also serve as alternative suppliers in the case that a shock is activated. Chris grew with the Yale School of Forestry and Environmental Studies. Thanks so much for being on climate account today. Thanks for having me. That's

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