The number of confirmed or suspected attacks affecting the power grid in Washington state had reached a decade-high last year, even before four electrical substations in Pierce County were vandalized ...

From Colorado to Washington, from Ohio to Pennsylvania, coal-fired power plants are shutting down. The United States is on track to retire half of its capacity to generate electricity from coal by ...

Brainteasers are a great way to test your cognitive, problem-solving skills and intelligence. Some are designed to improve memory, while others can even test your IQ scores. It's even a great way to ...