Three California unions are accusing a rival labor coalition of using "shameful" tactics to win exclusive contracts for building renewable power plants — tactics they said delay new jobs and add to each project's costs. Unions representing carpenters, laborers and operating engineers criticized California Unions for Reliable Energy for challenging construction projects on environmental grounds — then dropping objections after its main affiliate, the State Building & Construction Trades Council of California, wins lucrative contracts to supply workers. Since 2000, CURE has participated in environmental hearings for all 12 renewable energy projects proposed for the Southern California desert, filing more...