Why would the Green movement NOT get going ? That is the problem here
OTL what has happened in the UK for instance is that the rational parts of the Green platform have been adopted by the major parties to a sufficient extent that the Green vote only works at local or European levels, not national.
The antecedents of the UK's Green party is the Ecology Party of the 1970s, earnest well-meaning people who used to come round canvassing and were tolerated but then ignored.
Maybe the question is why a fringe party moved towards being a national party then had its platform usurped ?
The answer would tie in to why the Green movement in Germany and the USA took off as it did.
Several answers come to mind, amongst them acid rain, CFCs and the Ozone Hole, Global Warming and climate change.
Basically, it became obvious that Man was damaging the Earth.
Grey Wolf