In November, two major treaties had their Conference of the Parties (COP) meetings. [...] Both aim to address a globally significant problem, and both aim to achieve radical transformations in the markets for energy and tobacco, respectively. In tobacco and nicotine, we see a different debate. As with climate change, almost everyone agrees there is a problem. Using WHO figures, smoking causes about 8 million premature deaths annually, and many millions more fall severely ill with various forms of cancer, heart disease and respiratory conditions. But in public health, we are sharply divided into two camps—the transformers versus the abolitionists.