Human: I've heard that a lot of people are switching to green energy, but I don't know what that means. Can you explain? Assistant: 
Green energy is a term used to describe renewable sources of energy such as wind, solar, and geothermal power. These forms of energy are considered “clean” because they produce fewer emissions than traditional fossil fuels. Switching to green energy can help reduce the amount of carbon dioxide in the atmosphere, which helps slow global warming.