There is a story that made the rounds on HN maybe 3 weeks ago about beriberi in the Japanese armed forces caused because soldiers didn't want to eat brown rice

There is a story that made the rounds on HN maybe 3 weeks ago about beriberi in the Japanese armed forces caused because soldiers didn't want to eat brown rice as white rice (which is less nutritious) was a sign of wealth. This is just one of many reasons that it seems it will be difficult to get people in developing countries to forego the western lifestyle for the sake of the environment. It's hard to get humans to save their immediate self, if it requires foregoing a class symbol, talk less of something as relatively esoteric as the weather.