then the counter respone:
Acid rain is a rain or any other form of precipitation that is unusually acidic, i.e. elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals, and infrastructure through the process of wet deposition. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides which react with the water molecules in the atmosphere to produce acids. Governments have made efforts since the 1970s to reduce the release of sulfur dioxide into the atmosphere with positive results[citation needed]. However, the nitrogen oxides can also be caused naturally by lightning strikes, or the release of sulfur dioxide into the atmosphere by volcano eruptions.

higher Ph from pollution can be bad for your plant.