People tend to forget that while gas is being used for energy production, it is also being used as basis of chemical processes, e.g. for ammonia production, which then starts a whole chain of products (most prominently: carbonic acid, fertilizer, cooling, removing CO2 from industrial exhaust, ...)
We can't just replace natural gas with nuclear power, even if we did, we'd still be in deep trouble.
I know. In our state we're very pro-nuclear and the local Green party basically ended itself over this issue. I used to think that's surely going to happen in Germany too - such a scientific, rational and pragmatic nation/state, right? But oh well, seems like economical pragmatism wins over ecology and health.
We can't just replace natural gas with nuclear power, even if we did, we'd still be in deep trouble.