“The water system in this country is overwhelmed, and we aren't putting enough re…” — Erin Brockovich

What's happened in my career has been about knowing myself and realizing my flaws are my strengths, and to embrace them; to access what I'm really good at, and what I'm not so good at; and tune out the voices that get inside your head and make you think you can't do something.

The issues that most impact the average person are made at the local level.

When I discovered that hexavalent chromium was causing cancer in the town of Hinkley, California, it led to residents being paid $333m in compensation. But, unbelievably, that chemical remains in our drinking water.

Contaminated water is not a problem limited to Flint. Think of New Jersey, where school fountains were found to contain unsafe levels of lead. Or the EPA's 33,000 superfund sites, which are highly-polluted areas that require long-term clean-up operations. The problem is so large that it feels insurmountable.