The challenge of climate change is discussed every day, but another issue that's almost as knotty: how do we talk about it in a way which induces the desired response? Nikki Wright runs Wright Communications and has worked with clients like Toyota and Urgent Couriers for almost 20 years in the sustainability space. David Robertson runs Hardwired, a consultancy which deploys behavioural psychology to nudge consumers toward the desired behaviour. Together they tell Duncan Greive how to bring your audience with you when you’re talking about the big, gnarly issues.

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