Your car's engine needs a very specific diet of air and fuel to do its job, and it's the fuel pressure regulator's (FPR) job to feed it the right amount. The gadget is relatively tiny and can fit in ...

The US coal industry is having a good year. Demand for the dirtiest fossil fuel is increasing, utilities are running their plants harder, and miners are boosting production.

Shapiro thinks Pennsylvania’s electric grid operator, PJM, moves too slowly. He wants states to have more control.