Any help with grammar? Thanks! The automotive industry has made a huge step forward to reduce the negative impact on the environment. These changes occur even before the tightening of environmental standards by authorities. Since the 1990s, only thanks to EURO norms, the volume of СО2 emission has decreased from 3.16 g / km to 1 g / km. In the field of public passenger transportation and personal transport, has been a huge movement for usage of electric energy. Today the effectiveness of this approach for the protection of the environment is questionable, because the electricity, in any case, is generating mainly by hydrocarbons (40.8% - coal, natural gas - 21.6% ). The efficiency of the electric motor is equal to the efficiency of the internal combustion engine. The only difference between electric and classical car is that the "exhaust" is somewhere far away, and air in large cities is clear. Thus, the global environmental friendliness depends on the type of power station, which generate electricity, in the case of classical coal power station that all comes to naught.