Environment
- Creates greenhouse gas emissions
- Stirs up debris
- Adversely affects pollinators
- Generates solid toxic waste (spark plugs, used oil, used filters, gasoline-soaked rags)

Health
- Causes/worsens asthma and other respiratory illness
- Noise causes hearing damage in operators, adversely affects those with autism and misophonia, causes sleep disturbances in shift workers and babies
- Causes neurological damage from airborne toxins