Comment by openrisk

In the longer term various alternatives are conceivable if people put their minds to it. Politically, economically, technically this is very much like the energy transition: There is immense current dependency that cant be just switched off (and vested interests will resist for as long as possible, using every possible means), but there is sequence of low hanging fruit which in time can be expanded. The trick imho is to always apply the highest amount of pressure that wont burst the kettle.