Cheating and Tampering Increase Car Pollution

Cars today have systems to reduce pollution, but some companies cheat on tests.

They install special devices to make cars seem cleaner than they are.

This is mainly done in diesel cars because the systems are more complicated.

Some car owners also tamper with their cars to make them run better or avoid extra costs, which is often illegal.

These actions lead to more pollution, and have led to expensive health problems.

To fix this, we need better ways to find cheating and tampering.

Eventually, switching to electric cars will eliminate these problems, but until then, we must ensure that the existing cars run as cleanly as possible.