Trends that will affect your future... A Chinese puzzle.
Schwartz
Stephan A
SA
D002681:China; D003247:Conservation of Natural Resources / Q000331:legislation & jurisprudence; D004463:Ecology / Q000639:trends*; D017753:Ecosystem; D005544:Forecasting; D033161:Government Regulation; D006801:Humans; D014481:United States