| The city children got a chance to be in the country and become aware of the watershed system, acid rain and pollution. |
| Power generated from fossil fuels causes smog, mercury pollution, acid rain and global warming. |
| Scientific work in the 1970s and 1980s into acid rain had a strong effect on arousing governments and the public, and reducing sulphur emissions. |
| Other aviation gases include hydrocarbons, nitrogen oxides, and sulfur dioxide, which contribute to acid rain. |
| The soft acid rain that has fallen this summer has left the countryside a veritable patchwork quilt of colour. |
| We have greatly limited sulfur emissions from electricity generation, thereby reducing risks from acid rain. |
