The rate of pollution is very high over these years.

What do you think would be the biggest effect of pollution to our world?

They don't yet know the full extent of the pollution.

Both types of pollution can cause health and environmental problems.

The plant also was a major source of pollution, another key issue brought to light in the late 1960s.

We must not only focus on just the concept of pollution.

It is also a primary source of pollution for the river.

There is also the matter of pollution in space, an issue that's only getting worse.

Jersey City did have areas of pollution at that time.

You can lower the amount of light pollution by having lights off when they are not needed.