A Peruvian farmer won a small but significant legal victory on Monday when a German court said his appeal against energy giant RWE, which he accuses of contributing to climate change that is threatening his Andean home, had merit. After hearing oral arguments from both sides, the higher regional court in the western city of Hamm said Saul Luciano Lliuya’s demand for damages from RWE was “admissible”, paving the way for the case to proceed. Luciano argues that RWE, as one of the world’s top emitters of climate-altering carbon dioxide, must share in the cost of protecting his hometown Huaraz...