... be no more petrol in the world, or it will simply become too expensive for us to use This will be no bad thing, because petrol from cars does a great deal of damage to the environment It is unlikely ... kind of fuel which, hopefully, will not create a lot of pollution This may sound like an impossible dream, but the good news is that this new fuel is already here, and it is all around us It comes ... However, experts believe that this will change over the next or years, and then there will be no more environmental damage caused by cars What is the writer trying to in this text? A tell people about...