The source then might cause harm to humans or the environment.

He's a large predator with the potential to cause serious injury to humans.

This species does not cause any harm or threat to humans.

These hazardous wastes can cause potential health risks to humans and the environment.

I can do nothing that will not cause harm to humans.

The use of agents that do not cause harm to humans but disrupt the economy have been discussed.

An introduced species that causes economic or environmental harm to humans.

It can cause excruciating pain to humans, sometimes followed by death.

These sites can cause health risks to humans usually drawing attention to them.

However, the moths are not thought to cause any threat to humans.