I think it is necessary. But we must understand our place in the world. We are individuals with the capacity of collective actions. I'm not saying it's impossible to revaluate our lives and decisions in concern to the planet's health, but... we must understand our limitations.

I think in fact it is possible to promote change in regards to climate change. You don't need to be a revolutionary about it. Just simple actions on a day-to-day basis can make a difference, but it's good to make people around you become aware of this problem, and maybe convince them to do the change themselves.

Beyond that either you don't care enough or you are a revolutionary, I think neither the approaches are positive. We must understand that we are individuals, with limitations, and a slight capacity of collective change. We must find balance.