A couple of months ago my eight-year-old daughter slumped in her chair at the dinner table and said, “In 2050 it’s all over.”

See Arnold Schwarzenegger go undercover as a used car salesman with a penchant for muscle cars and gas-guzzling vehicles.

What happens when Americans want to break up with single-use plastics and realize they can’t?

Have you ever had one of those moments where someone says something to you and it rings so true, it literally feels like a wave of light...

A couple weeks ago we released our Period of Change special-topic Pulse report. Here's how the news has covered it.

I started my week speaking at the University of Pittsburgh’s annual Engineering Sustainability event and one of the students asked me,...