Doctors want to know whether exposure to environmental risk causes disease.

But in this case, the potential is enormous and the environmental risks are modest.

The groups said the project posed environmental and safety risks.

But rebuilding officials needed an assessment of their potential environmental risks.

See below for environmental risks of gene flow among plants.

He is also the author of studies on environmental risk.

The officials characterized their proposal as sharing the environmental risk.

Safety for the crew is generally minimal, and the environmental risks high.

I am also worried about the welfare of vulnerable sea areas and the environmental risks they face.

Everybody should understand the health and environmental risks of mercury.