Abstract

Climate change conspiracy theories raise many questions. Some of the questions are philosophical in nature. They include issues such as how to define “conspiracy theory” (a conceptual question), what the ethical status of conspiracy theorizing is (a moral question), and how decision-makers should deal with climate change conspiracy theories (a practical question). One way to define “climate change conspiracy theory” is to say that they are explanations that (1) refer to conspiracies, (2) are not in line with more or less unanimous views of the climate scientists, and (3) offer clearly insufficient evidence in support of the alleged conspiracies: Relevant experts find the evidence so bad that the theories are not considered even as competing explanations. Climate change conspiracy theories are ethically problematic. The theories tend to reduce individual persons’ commitment to cut down their carbon footprint. More generally, conspiracy theories undermine trust toward epistemic authorities and social institutions generally. There is no agreement on what the right policy toward climate change conspiracy theories would be, but there are many options. Increasing social trust is among them.