Trends That Will Affect Your Future … A Chinese puzzle

References 

1. Diamond J . Collapse (How Societies Choose to Fail or Succeed) . New York: Viking; 2005;
2. Tuchman BW . The March of Folly (From Troy to Vietnam) . New York: Knopf; 1984;
3. ITTO . Annual review and assessment of the world timber situation . 2004; Available at: www.itto.or.jp/live/Live_Server/400/E-Annual%20Review%202004.pdf. Accessed October 19, 2005
4. Sun X , Katsifris E , White A . Meeting China’s demand for forest products (an overview of import trends, ports of entry, and supplying countries with an emphasis on the Asia-Pacific region) . Int Forestry Rev . 2004;6:3–4