Acute water scarcity, a significant loss of biodiversity and more urban pollution seem inevitable.
The River Rhine has been a subject to urban and industrial pollution for several decades during the 20th century.
Lighting to simulate the effect of twilight or urban light pollution.
It is also highly tolerant of urban pollution and will even grow well in inner city environments.
The question of how to deal with urban pollution has proved most difficult of all.
No cynicism is intended in saying that beauty seemed suddenly to blossom amid urban pollution.
They play a malignant role in urban pollution.
The environmentalists' main complaint deals with the proposals on urban pollution.
A low sulphur content out at sea is not deemed to be an environmental problem, because the main aim has been to reduce urban pollution.
Studies show that where coal is a primary fuel, high levels of urban pollution may result.