Kansas and Iowa, rich in wind resources, can provide more electricity than other states.

If that sounds ambitious, consider that the country has installed some 50, 000 wind turbines on land over the past two decades. They now supply roughly 5 percent of the nation’s electric power, a figure that reaches double digits in particularly windy states like Kansas and Iowa.

Over the past dozen years, the Supreme Court has issued several landmark decisions affirming that adolescents and adults are fundamentally different in ways that justify treating minors less harshly when they violate the criminal law. The court, drawing on psychological and brain science indicating that people under age 18 are not yet fully capable of controlling their behavior, abolished the juvenile death penalty and greatly restricted life without parole sentences for crimes by juveniles.