How should the Democrats deal with environment issues in 2020?

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This will be an interesting battle I think. There is a near universal consensus amongst the commentariat, I think, that the old Third Way model is, if not dead, ludicrously anachronistic; and that some shift to the left is needed. But then we start teaching a little odd part within the left of the party. There is a strong element that idealises labour and growth, that wishes for big public works and a reverse of deindustrialization. This would seem at first glance to fall into natural friction with another big plank of the Democrats: the environmental wing. and this latter group has ramped up in recent years (out of urgency) in scope and ambition. A contemporary leftist position includes a carbon price (normally as a tax rather than cap and trade), a phase out of coal and a "keep it in the ground" philosophy, which argues that no new fossil reserves should be exploited, and would presumably put a kibitz on any new drilling etc. on American soil. (N.b. I am sympathetic to these aims)

To what extent should Dems use this messaging? Can the democrats win back "trump dems" while also maintaining a message that is pro-europeans enough for the base? Should a biebertrudeau approach be tried? (I.e. carefully go down the middle)