New Zealand’s sweeping 15-year emissions plan shows what climate legislation can look like when it’s built to last — with near cross-party backing making it harder for future governments to unravel. Central to it is a “scrap and replace” program giving lower- and middle-income families real help trading older vehicles for electric or hybrid ones, tackling the equity problem that typically leaves cleaner cars out of reach. Greener buses, trams, and cycling infrastructure round out the approach, recognizing that fewer car trips matter as much as cleaner ones. It’s a model other countries will be watching closely.