Great point. You need concrete for wind, solar, and li-ion battery storage too (including pumped hydro), but out of those I’d say pumped hydro is the only one that remotely compares in the amount of concrete needed for construction.

So purely looking at the emissions from materials needed to build these power sources, renewables have the edge due to less concrete. These emissions might show up elsewhere in raw material extraction like with silicon for solar, and then the rare earth metals needed for generators in wind, all the lithium/nickel/cobalt needed for batteries, etc., but I want to say that the Life Cycle Assessments (LCAs) from places like the National Renewable Energy Laboratory (NREL) in the US or the International Energy Agency (IEA) worldwide have taken that into account and still show that renewables + storage are cheaper on a carbon basis compared to fossil fuels and nuclear.

Did you read the quote? 15-20 years, as in decades before 1 nuke plant is built. I agree in that politicians of the past should have led us to a more sustainable and resilient energy future, but we’re here now.

Advanced nuclear should still be 100% pursued to try to get those lead times down and to incorporate things like waste recycling, modularity, etc., but the lead time in decades absolutely means nuclear power might not be something worth doing.

The IPCC puts the next 10-20 years as the most important and perilous for getting a hold on climate change. If we wait for that long by not rolling out emission-free power sources, transit modes, or even carbon-free concrete, etc., then we might cross planetary boundaries that we can’t come back from.

Nuclear is a safe bet and bet worth pursuing. I would argue that, along with that source from the IAEA, old nuclear is note worth it.

Nuclear power is the ONLY form of clean energy that can be scaled up in time to save us from the worst of climate change.

Mmmm I agreed with you until reading this. The 6th IPCC Assessment Report showed us that Wind + Solar + Battery Storage are still a safer bet for rolling out non-fossil fuel energy sources at the fastest rate we can launch them. Nuclear sadly still takes too long to build.

I think there is a space for advanced nuclear, though. Small Modular Reactors, Fast Breeders, and such should be encouraged going forward. The US (and I think UK) each have funds specifically designated to the development of advanced nuclear too.

But old nuclear will take too long to get a hold on emissions. I still think nuclear fits in a well-balanced energy portfolio, but not of the specific technology of the 1950s-1990s.

We’ve had the cure for climate change all along, but fear that we’d do another Chernobyl has scared us away from it.

I mean, Chernobyl is kind of an outdated example. Fukushima would be the more recent one to point at, or even Three Mile Island. Not particularly useful for your argument. Still, I think if people got educated about all 3 of those examples from history, they’ll come out convinced that nuclear is still a safe bet.

Problem is, like I said above, that conventional nuclear takes too damn long to build.