There’s nothing stopping me aiming to cut my own emissions by the recommended 45 per cent. But have I tried? No. Far easier to wait for an agreed, society-wide consensus.
That’s when it hit me: we can’t bemoan passive self interest at a global level while practising the exact same approach in our own lives. Succumbing to the lure of disempowerment is what has cost us most dearly in the response to climate change. That is what I would go back in time to warn people.