As this episode was recorded, Europe was in the middle of a heatwave. More than 1,300 people had died in a single week. France alone recorded around 1,000 excess deaths. Red heat alerts were issued simultaneously across six countries.

This happens every summer now. Europe has known about this risk for over 20 years since the 2003 heatwave that killed more than 70,000 people in a single season.

So why are people still dying at scale?

A conflict in the Persian Gulf closes a shipping route. China bans the export of a chemical most people have never heard of. A copper mine in Chile runs short of a critical input. Wind turbines in Europe get more expensive. EV charging stations in Norway take longer to build.Nobody designed this chain. Nobody saw it coming. And nobody is reporting it as a single story.In this episode of The Cascade, we follow the wire. Copper is the metal that makes the green transition possible. Every EV, wind turbine, grid cable, and data center relies on it. But demand is set to triple by 2045, new mines take 16 to 17 years to build, ore grades are declining, and right now a little-known chemical called sulphuric acid is quietly limiting output from the world's largest copper producer.A 50 percent US tariff distorted global copper flows, causing prices to spike and then collapse within weeks. It also pushed manufacturers to reroute supply chains through other countries instead of building the domestic capacity the policy was meant to encourage.We explore why good intentions in complex systems often lead to unexpected results. We also examine why the most important decade for the green transition may be facing a supply problem that no one can solve on their own.The Cascade breaks down the system behind the headlines. This is what real-world complexity looks like.

Norway did it. One million electric cars. Nearly every new car sold is now electric. The policy worked.

So why is the grid in northern Norway refusing new connections? Why is clean hydropower being discharged into the sea unused? Why are household electricity bills rising to pay for infrastructure nobody planned for? And what happens to a fully electrified transport system when the electricity goes out?

Norway is the world's most advanced test case for transport electrification. In this episode we look at what the milestone numbers hide -- the grid limits, the weather dependency, the resilience gap, and the paradox of a green transport champion that is also one of the world's largest fossil fuel exporters.

The easy part is over. The Cascade unpacks what comes next.

On April 28, 2025, Spain and Portugal lost power in under 90 seconds. Over 50 million people. Up to 16 hours without electricity. Eight people dead. It was the worst blackout in Europe in over 20 years, and a year-long investigation by 49 experts still could not point to a single cause.

In this episode of The Cascade, we break down exactly what happened, why a grid running on 60 percent renewable energy collapsed so fast, and what the official investigation actually concluded, and what it left unsaid.

We explain the physics of grid inertia, why solar and wind behave differently from conventional power plants during a crisis, and why the solutions being deployed, including large-scale battery storage, may be introducing new risks that the energy industry has not fully reckoned with yet.

We also look at what this means for Norway and Europe, and ask the harder governance question: the warnings were in the reports. Why was nothing done in time?

The Cascade is a podcast about the hidden complexity behind the news. Each episode takes one real story and unpacks the system underneath it, using concepts from systems engineering, complex systems thinking, and sociotechnical perspective. Hosted by Omid Razbani, associate professor of systems engineering.

If you are interested in energy systems, infrastructure resilience, the European energy transition, renewable energy risks, grid stability, or just want to understand how the world actually holds together, this episode is for you.

We think of the internet as weightless — cloud storage, streaming, AI tools floating somewhere in the digital ether. But behind every search, every prompt, every uploaded file, there is a very large building, full of machines, drawing enormous amounts of electricity from a grid that was never designed for them.

In this episode, we look at a recent emergency order in the United States that gave grid operators the authority to cut power to data centers to prevent blackouts — and what that signal tells us about the collision between two infrastructures built on completely different logics.

We cover why the electricity grid and the data center industry are on a collision course, what systems thinking reveals about how this happens, and why this story is just as relevant in Norway, Ireland, Sweden, and anywhere else the global AI buildout is landing.

Concepts covered: tight coupling, mismatched tempos, hidden dependencies, suboptimization.