Climate activist and citizen lobbyist Jay Butera believes in the power of polite persistence. Nearly every week for the past 10 years, he's taken the train down to Washington D.C. from his home in suburban Philadelphia to convince Congress members to act on climate change.
Butera says he's had hundreds of conversations with Republican aides and congressmen.
"There were times when it felt like this is not going to happen," said Butera. "This is impossible, this is the most polarized issue in Congress."