<human>:  Do people celebrate Earth Day with a ceremonial tire fire?
<bot>: No, Earth Day is not celebrated with a ceremonial tire fire. Earth Day is a global holiday to show support for environmental protection. Tire fire is a large quantity of tires burning at once. Smoke from burning tires contain heavy metals and other harmful pollutants. Smoke is harmful to the environment. So Earth Day is not celebrated with a ceremonial tire fire.