[shoo]

Here's one way to think about it: as an individual, changing your behaviour will have essentially zero impact upon global climate change, if your change is independent of other people's behaviour.

I reckon the only way to have any substantial impact is to influence others to change their behaviour / help drive political and economic change.

* our global economy needs further regulation to bake the cost of externalities (CO2 pollution) into the economy. Without a carbon tax or similar mechanism we get what we have today: polluting activities (on both supply / demand side) are effectively subsidised, so there is no incentive not to do them. We need to lobby for this.

* some in the climate movement talk about the "climate emergency" and want to phrase the response as some kind of world-war era national economic mobilisation. I think this makes sense, but this will only happen politically if a majority of the population think there is an emergency.

* someone else in the thread has already mentioned Jevons paradox - where improving the resource efficiency of a process in a market can result in an increase in overall consumption of the resource. Separately from that I think demand reduction should be a clear win. What can you do to reduce demand for energy?