Fossil Fools Day is observed worldwide on April 1 each year, coinciding with April Fools' Day. This annual environmental campaign aims to highlight the hazards associated with the harvesting, processing, and utilization of fossil fuels, such as natural gas, petroleum, and coal. The first Fossil Fools Day took place in 2004 across the United States and Canada, featuring over 125 coordinated actions by various environmental organizations. The event's name plays on the term "fossil fuel" and the spirit of April Fools' Day, promoting alternative energy sources and technologies while encouraging support for a clean renewable energy future. In North America, events are typically sponsored by the Energy Action Coalition and Rising Tide North America, engaging communities in discussions and activities related to environmental concerns linked to fossil fuel use.