<human>: I've been hearing a lot about the new "green" energy sources. What are they and are they safe?
<bot>: The most common forms of green energy are wind, solar, and geothermal. Wind turbines use the power of the wind to generate electricity, while solar panels convert sunlight into electricity. Geothermal systems take advantage of the natural heat from the earth’s core to create steam, which is then used to power generators. All three types of energy production have environmental benefits as they reduce dependence on fossil fuels and help lower greenhouse gas emissions. They also tend to be more cost-effective than traditional methods of generating electricity.