Hybrid cars emit less CO2 than traditional gasoline-powered cars because they use less fuel. Hybrid cars use an electric motor to help power the car, which means that they don't have to use gasoline as often. The electric motor is powered by a battery that is recharged by the engine when the car is braking or coasting.
In addition to emitting less CO2, hybrid cars also produce less smog and other air pollution. This is because hybrid cars don't have to idle at stoplights or in traffic, which means that they don't produce as much exhaust.
Hybrid cars are a good way to reduce global warming and improve air quality. They are also a good way to save money on gas.