The World Health Organization (WHO) has unequivocally declared the climate crisis as one of the most significant global threats to human health. In response, the Climate of Health campaign, jointly developed by Havas Lynx and Point.1, delves into the critical nexus between increased air pollution, rising temperatures, and their detrimental effects on health outcomes. This campaign sheds light on the potential strain this could place on our global healthcare systems and emphasises the pivotal roles of pharmaceutical companies, advertising, and individual actions in reducing global emissions.