What contribution must municipalities, the federal government and the EU make in order to achieve the climate targets? Which instruments are effective and which are counterproductive? And what can each and every one of us do to make a difference? These are some of the questions ZEW President Professor Achim Wambach addresses in his latest book “Klima muss sich lohnen” (“Climate Protection Must Be Worthwhile”). At the #ZEWBookTalk on 4 July 2022, the economist gave a preview of his book and presented its core theses. In his presentation, Wambach provided the around 55 participants with an overview of the various dimensions of climate policy. Furthermore, he pleaded for more economic rationality in the choice of appropriate instruments, as markets and mechanisms operating in the background determine the effectiveness of individual climate policy measures. The way they operate, however, is less obvious than often assumed.