Nowadays ,there are a lot of concerns regarding unnecessary travel around the world ,because, these actions might be a source of more unwanted garbage into the air and in the seas and oceans ,so,some governments have decided to take action against a huge number of tourists and travellers through extra taxes for transportations and accommodation for reducing the numbers of persons who are going to travel around the world ,however, in my knowledge ,air pollution and dirty waters are created by a huge fossil fuels for developing industrial progress ,and I will explain in detail in following sentences,