The acids in acid rain are the only reason that forms urban smog alone.

The acids in acid rain are corrosive chemicals that leach nutrients from the soils, slow the growth of trees, poison lakes and combine with other chemicals to form urban smog. The simplest way to curtail acid rain is to use less energy from fossil fuels.

China has realized the great importance of healthcare, and this has been shown in the government documents...They are ready to look at public-private partnerships in the health area, realizing that there is no way the government can provide the service across the board to all segments of society. So I think what is at issue is the best delivery model.