King County wants to help families reduce food waste.
This week, Fall City Elementary School students and their families are taking part in a pilot program to track how much of their food ends up in the trash.
The county says food gets wasted due to a variety of factors, such as buying too much of it or storing it improperly.
The county estimates that the average family of four throws away one-quarter of the food it buys. That works out to about $1,600 a year per household.
Research conducted at the University of Washington raises concerns about "food deserts" in King County.
A food desert is where low-income people without cars lack easy access to low-cost, nutritious food.
The study said that just 34 percent of vulnerable populations in the country can walk to a nearby supermarket, and as few as 3 percent could walk to a nearby low-cost supermarket.
The researchers determined that public transit routes and timetables didn't help vulnerable populations reach any supermarket within 10 minutes.