A dominant discourse in talking about the climate has long been about individually reducing your carbon footprint. This discourse is also sometimes used to dismantle political action through accusing the advocates of change as being imperfect or hypocritical. If you face this question, here is what we suggest you say:
"The only conceivable way to save civilization is through coordinated collective action. The ecological, social, and economic crises we face are simply too enormous and too systemic. Uncoordinated, voluntary actions by conscientious individual citizens cannot possibly prevent the collapse of civilization. We are all caught up in this carbon-intense system. So, while I do make some alterations in my lifestyle to reduce my carbon footprint, I do not view this as an effective strategy. I put the majority of my energy into instigating the Climate Mobilization."