Fix grammar errors: On the flip side, although the problem of the emission of harmful gases has been handled, vehicles today are releasing carbon dioxide, which is a greenhouse gas, instead.
The problem is that the emission of carbon dioxide is not the only one. The problem is that the emission of carbon dioxide is not the only one.
The problem is that the emission of carbon dioxide is not the only one.
The problem is that the emission of carbon dioxide is not the only one.
Carbon dioxide is a greenhouse gas, but it is not the only one.
Carbon dioxide is a greenhouse gas, but it is not the only one.
Carbon dioxide is a greenhouse
The problem of the emission of harmful gases is a problem that is not solved.
The problem is that the emission of harmful gases is not solved.
The problem is that the emission of harmful gases is not solved.
The problem is that the emission of harmful gases is not solved.
The problem is that the emission of harmful gases is not solved.
The problem is that the emission of harmful gases is not solved.
The problem is that the emission of harmful gases is not solved.