Behavioral science shows : we need feedback. Feedback is an efficient ‘nudge’ in order to help decision-making. We adapt our way of doing stuff, see the impact & fine-tune if necessary.
The issue : Feedback of climate change is rare. Mostly the damage we inflict on the planet is slow, far away, hence invisible. We don’t immediately suffer from the 2° temperature rise, the melting icebergs or rising sea levels. Not just yet. Human reaction is then (unconsciously): “It wasn’t me”, “What difference will my little efforts make?”, “What’s the link between not taking my car today and the planet in 2030?”, etc.