16 Allegations of a cover-up of the effects of industrial pollution have been strongly denied by the Environment Minister.
17 Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.
18 Recycling also helps control environmental pollution by reducing the need for waste dumps.
19 A Royal Commission has been set up to examine environmental pollution.
20 The pollution of the forest has seriously affected plant life and, to a lesser extent, wildlife.
21 Richer countries must dig deeper into their pockets if global problems, such as pollution, are to be solved.
22 Britain came bottom on efforts to tackle pollution and global warming.
23 The computer model assesses the likely impact of new pollution sources.
24 Environmentalists are alarmed by the dramatic increase in pollution.
25 The report ascribes the rise in childhood asthma to the increase in pollution.
26 The government itself has little information on the extent of industrial pollution.
27 There has been a sharp decrease in pollution since the law was introduced.
28 The authority can chase up the source of the pollution and demand that the owner clean it up.
29 We're trying to raise awareness about the environment in general and air pollution in particular.
30 Growing levels of pollution represent a serious health hazard to the local population.