Yes, I know: weather is not climate, but for that same voting, ideologically non-aligned, public majority, the weather is their climate certainty, their reality. And the reality in North America this Spring is, well, colder than "normal".
I'll say it now and I'll stand by it: no election will ever be fought and won on environmentalism: every party can appear green and fuzzy -- those that isolate themselves as more radical than that do so at their political peril. Hence, all parties say the right things and largely do nothing (sorry, banning light bulbs is nothing but a market intervention, an inconvenience, unnecessary and totally ineffective) because there is nothing government can actually do about large, non-issues -- and most pet environmental ecomyths are by definition, non-issues.
The electorate, if they vote, realize this and look to see which party either they trust most, dislike least or fear most -- the majority are not set in their ideological allegiance but are swayed by the little things in campaigns that leaders do or do not do to create public trust, fear, loathing etc.. Often, many fail to exercise their franchise as they see nothing to distinguish one option from another: certainly the environment will not be that dividing line.