Climate change scientists warn that the continued burning of fossil fuels is likely to cause major disruptions to the global climate system leading to more extreme weather, sea level rise, and biodiversity loss. The changes also will compromise our capacity to generate electricity. In recent decades, capacity losses at United States power plants occurred infrequently, but scientists warn that the warming climate may increase their regularity and magnitude. This instability could interrupt power supply to homes, hospitals, transportation systems, and other critical institutions and infrastructure at a potentially high financial cost.