LANZHOU, July 14 (Xinhua) -- Frank Kouwenhoven, a 69-year-old Dutch scholar, has dedicated over 20 years to studying Hua'er, a folk song popular in northwest China.

Amid the vast expanse of the Gobi Desert in Jinta, Gansu Province, rows of solar panels are transforming once-hostile sands into a thriving “blue ocean” of green energy, for which Trinasolar supplied ...