Vail Daily: Everyone acquainted with environmentalism is all too familiar with the “things you can do to save the world” lists. Critics mock such tips as meaningless feel-good gestures; the converted often yearn for more substance. Inventor and engineer Saul Griffith has helped invent an intriguing way to show people how their highly personal actions must play a role in tackling the immense challenges of climate change. He shared it with an audience at Paepcke Auditorium on Sunday as the six-day …