These interactions generate both positive and negative externalities between others' actions.
Nuclear powered stations also arguably create negative externalities, of course.
Every business creates "negative externalities" - costs born by others.
All earlier cases were decided with the negative externality of obscenity in mind.
Many negative externalities are related to the environmental consequences of production and use.
The graph below shows the effects of a negative externality.
Fossil fuels are known for their huge negative externalities or hidden costs.
If there is a negative externality, then social costs will be greater than private costs.
Specific taxes on technologies and products which are associated with substantial negative externalities.
Traffic congestion is a negative externality caused by various factors.