Chew on this for Earth Day: How our diets impact the planet

(Public Domain photo courtesy National Aeronautics and Space Administration)
The foods we choose to put on our plates — or toss away – could have more of an ecological impact than many of us realize.
On Earth Day, here are some ways to consider how our diet impacts the planet.
Waste not, want not
You’ve heard the numbers on food waste. More than 30 percent of available food is tossed each year in America. It’s enough to fill Chicago’s 1,450-foot-tall Willis Tower (f