There is not another planet. If we keep using petrol cars, the entire planet will become a wasteland. Every year, an estimated six billion four hundred and forty million metric tons of CO2 is put it into the atmosphere every year (Not including trucks or large cars). That is 6 440 000 000 tons of CO2. There is a solution though. Hydrogen powered cars. These cars don't emit any fossil fuels and unlike electric cars, they don't destroy the environment to make. In fact, the only side product of these cars is drinkable water. Sign this petition to switch over to hydrogen powered cars for a cleaner future.