I strongly support the banning of diesel emissions. The Mayors of the world' four largest cities have made the right vow of banning diesel emissions by 2025. We also know the dangers of this emissions and how they are polluting our environment. Therefore, the other cities should follow the suit.
Yes, other municipalities should follow the example of the mayors of the world's four largest cities by vowing to ban diesel emissions by 2025. Diesel emissions pose a grave threat to the health of people in cities where this form of fuel is widely used. Other cities should be this proactive in protecting the health of their citizens.
Public policy should be left to Nation States and the United Nations in general. If city's just because of their size start foisting public policy decisions on the rest of their country, it could upset the balance of power and effectively disenfranchise the citizens of any particular country. If this were allowed, then instead of convincing an entire and diverse country of a particular public policy special interests could target a large metropolitan city of a particular course of public policy. That public policy, assuming the metropolitan area were large enough, would then impact the rest of the nation without their input.
At the end of the day, people still have to conduct business. Their families depend on it. At the same time, a lot of the vehicles used to service businesses in cities rely on diesel to make their deliveries and supply products. It would stagnate the entire economy to ban diesel emissions.