The nation’s largest electric grid studied whether its reliance on natural gas could threaten the system. The answer: Not now, but a perfect storm of events could cause problems.

The candidates want a severance tax on oil and gas, more money for the Department of Environmental Protection, and a moratorium on fracking. They may find it hard to have an impact on legislation, but hope to begin changing the conversation in the Legislature.

As part of the “Mariner East 2: At what risk?” series, StateImpact Pennsylvania reports how the lack of siting regulations for pipelines mean they can be built close to homes, for example. “What are you going to do?” said one man who lives near where an explosion of part of a different pipeline occurred recently.