Worst ever drought in Europe. Last week, France forced its nuclear power plants, which produce 70 percent of its electricity, to operate at reduced capacity: releasing high-temperature coolant water into rivers that are at record low levels is an ecological hazard. Amid the ongoing energy crisis, however, the French energy agency now has ordered the plants to return to full capacity, whatever the resulting damage to the environment, including plant and animal life. Of France’s 96 mainland departments, 86 are on drought alert. The Loire River, France’s second-largest, can be crossed on foot along much of its length.