Coal has been growing in developing nations because it's "cheaper" than renewables because the externalities aren't priced in.

Nuclear isn't an option, it's simply too expensive compared to renewables.

Here in The Netherlands there's pressure to close the last coal power stations. The liberals (i.e. Republicans minus the religious and racist blocks) have been pushing for new nuclear power stations only for the energy suppliers themselves to turn around and call them lunatics because renewables are better.