Expert advice on climate policy and effects of fake advice

摘要

Climate change is complicated. Previous laboratory experiments have revealed severe misperceptions that make people believing in climate change, favor wait and see policies. Judged by similar resource problems, wait and see policies will cause climate to overshoot what is currently seen as the largest acceptable change. Adding expert advice to an earlier laboratory experiment, we find that expert advice can lead to nearly perfect decisions. Of great concern, however, we also find that fake advice that corroborates natural misperceptions, nearly nullifies the effect of proper expert advice. Since the world is on a path towards climate overshoot, paving the ground for appropriate expert advice is very important.