There are many reasons why the risks of climate change would not fully register in the human mind. In addition to the denial-provoking gravity of the threat, climate change is not the type of risk our minds evolved to detect. It is gradual, and it derives largely from the familiar and widespread practice of burning fossil fuels. It is something we all contribute to and cannot just blame on enemy evildoers. And it manifests as natural phenomena like heat waves, droughts, fires, storms, and floods; we need experts, assessing global data and long-term trends, to tell us if what is happening is