You pollute by using any type of nonrenewable resource, letting toxins get in the air, using many air fresheners... I could go on and on. There is really no way to stop pollution altogether, for if all pollutions stops... all life stops.
You can pollute less by:
Driving less Using pulic transport Not flying Buying less Recycling more Buying secondhand, refurbished, or recycled goods Using less power Keeping your AC/heating systems...