I won't bother responding to Gresnight (below), he has an agenda.
A greenie as I use the term is no more a slur than the word Hippie is. It is someone who viscerally rejects a solution to Global Warming that doesn't preponderantly or exclusvely depend on (natural) Solar or Wind Power.
Greenies have been openly hailling the "Death Spiral" of the Grid for months or even years, it is selective amnesia, to say " The grid is not being 'destroyed' . . . that's just hyperbolic whining."
I did miss you suggestion of the use of Nuclear Power, and for that I do apologize. It is not clear then, that the term greenie actually fits you sir.