> Natural gas is considered sustainable in Europe That is a misleading mischaracterization. The article refers exclusively to biogas, not fracked natural gas w

> Natural gas is considered sustainable in Europe That is a misleading mischaracterization. The article refers exclusively to biogas, not fracked natural gas which is the basis of your claim of "cheaper, more plentiful and cleaner than gasoline". And it's not even sustainable if we were to purposefully scale its production (it still emits CO2), which is why the article prefers the lesser term "renewable".