Should You Fast to Help the Environment? Today marks a high holiday for the Jewish faith: Yom Kippur, and many Jewish people will fast for twenty-five hours. As a Jew myself, I have fasted for the last couple of Yom Kippurs, and I am fasting on this day too. Yom Kippur is a day to apologize to God for their sins. It doesn't matter whether or not you observe Yom Kippur; exploring the environmental impact of fasting applies to a lot of people. There are two different types of fasts we will explore. The first is a traditional fast, or not eating or drinking for a long time period (e.g. Yom Kippur), and the second is intermittent fasting. Intermittent fasting is generally defined as fasting on and off for short periods of time. A common example of intermittent fasting is eating during an eight-hour window of the day, and fasting for the remaining sixteen hours. Apart from religious reasons, people tend to fast for health reasons. People who fast tend to eat less than those who ...