AHL: Those herbivores were bison and elk. But Conway-Anderson says they could be cows today. She's leading a multi-year study at this farm to first thin out the forest areas, get native grasses growing and then bring in cows to graze. It's called silvopasture, and it's a very old way of raising animals. Conway-Anderson says her research is getting more attention because healthy forests can be a critical part of combating climate change. Trees are good at keeping carbon out of the atmosphere, and they're also resilient in the face of extreme weather caused by climate change.
CONWAY-ANDERSON: When we do have floods, when we do have droughts and fires, it won't be wholesale destruction. It will be able to recover much more quickly.
AHL: Conway-Anderson says she wants to get the data and create an example to help farmers move their cattle from open fields into forests. She says it should be a short trip because so many want to and some already are.
Bruce Carney raises cattle on his family farm north of Des Moines. More than 10 years ago, he decided to convert 200 acres from corn and soybean fields to land for cattle to graze on.
BRUCE CARNEY: What I learned was that I needed trees. I needed windbreaks. I needed shade. I needed a living barn. To me, that's what trees do for you.
AHL: Carney says silvopasture development is a success because trees make cows happier, healthier and bigger, so they bring in more money when they're sold.
Kaitie Adams with the Wisconsin-based Savanna Institute says it can also make small farms more viable.
KAITIE ADAMS: By its very nature is - it's intentional and intensive, so it allows for us to do more on one piece of land.
Click here to see more...