Other quotes I found compelling from the article were these:

Ultimately, a personal action versus political action binary is unhelpful. The environmental movement needs to sustain a way to do both: agitate and organize for systemic change while also still encouraging individual behavior changes.
[…]
Which is to say that personal action and collective, political action are self-reinforcing. Individual lifestyle changes can act as a kind of alloy that strengthens political activism. To do the difficult work of walking more lightly on the planet is to bind commitment to conviction.