traffic is increasing because in every car there is only one person sitting which is equal to 100 people goes in 100car if we take two buses this 100 people will easily come. instead of taking 100 cars
when we talking about the global wrming then the amount of CO2, is the significance it has for the human the health problems and breathing problem will become more servere, because the blood will slowly be more acid. This will affect bloodpressure etc.and it will also damage the ozone layer