Expert Comment: Let's bring the city centres back to the people

To avoid taking difficult-to-accept actions, some use a variety of tactics, such as exaggerating the negative impacts of climate action. Truth is, it is not clear how to measure the impact of such zones on the reduction of emissions in a city – which is why experimentation is so important. But when evidence becomes more important than the goal, or a numerical target becomes the goal, evidence-based policy can actually become a barrier. Data fetishism is not the goal of climate policy. And data cannot replace public debateData fetishism is not the goal of climate policy.