AP: China rejected a U.S. union’s trade complaint over Beijing’s support for clean energy industries and said Wednesday such criticism is hypocritical at a time when China is under pressure to cut greenhouse gas emissions. The Sept. 9 complaint by the United Steelworkers said Chinese producers of wind and solar equipment receive improper subsidies in violation of Beijing’s free-trade commitments. The Obama administration has 45 days to decide whether to launch an investigation that could …