As CEO of Cultivo, Manuel Piñuela wants to regenerate carbon on 1% of the planet. That’s no easy task. In fact, achieving that goal would require signing up enough farm and forest acreage to cover Texas twice. On this episode, Zach and Mitchell continue trying to unpack the complex world of carbon markets and Mitchell has strong opinions.

Is it Zach’s birthday? You might think so. Because on this episode of Field Work, Joe Liefer of John Deere joins Zach and Mitchell to talk about green tractors, a thing Zach loves. Liefer is an engineer at John Deere who has been working on the company’s autonomous 8R tractor, which doesn’t require a human behind the steering wheel. Instead, it has six pairs of stereo cameras so it doesn’t bump into stuff like, you know, fence posts.

Gabe Brown didn’t grow up on a farm. But today he’s way into regenerative agriculture. On his farm and ranch just outside of Bismarck, North Dakota, Gabe does no-till, cover crops, and a mini-version of mob grazing. He’s also one of the founding partners of Understanding Ag and the author of “Dirt To Soil: One Farmer’s Journey Into Regenerative Agriculture.”

Robert Bonnie grew up on a Kentucky farm. Today, he’s one of the most powerful people in agriculture, serving as a top USDA official in the Biden administration. One of the initiatives he’s working on is the Partnerships for Climate-Smart Commodities, a $1 billion program aimed at reducing the ag sector’s carbon footprint.

Disclaimer: Hosts Mitchell Hora and Tara Vander Dussen have applied for funding from the USDA’s Partnerships for Climate-Smart Commodities program.

Farmers in 14 states have planted more than 14,000 acres of prairie strips to ease soil erosion. On this episode, Lisa Schulte Moore of Iowa State University explains the science behind planting native grasses and plants. “Prairie strips are oriented perpendicular to that flow of water,” she says. “It's really about slowing that water down, allowing it to infiltrate.”

Food deserts are places with limited access to fruits and vegetables. When the topic popped up in one of his college classes, Kamal Bell decided to do more than just talk about it. Bell started Sankofa Farms, a 12-acre farm in North Carolina. He grows kale, raises farm-fresh eggs and keeps bees there. In this episode, Bell talks about overcoming the challenges he faces as a first-generation Black farmer and why he's committed to helping young people gain valuable agriculture experience.

Lots of scientists give farmers advice. But not many of them have actually farmed. Jonathan Lundgren quit the USDA and started Blue Dasher Farms in South Dakota. In just a few years, he’s learned some things, including how difficult farming is. Lundgren is also the driving force behind Ecdysis Foundation, a research organization that aims to study regenerative farming practices on 1,000 farms.

Tara Vander Dussen makes her Field Work debut at Zach Johnson’s Minnesota farm. In this episode, Tara tells Zach and Mitchell about the wonders of New Mexico: sand dunes, square roads, fainting goats, and how she encourages dairy farmers to be more sustainable. She also seems genuinely surprised at the concept of rain.

Big changes are coming! Tara Vander Dussen, a New Mexico dairy farmer, will be joining Zach Johnson and Mitchell Hora as a Field Work co-host. Throughout Season 4, Zach, Mitchell and Tara will be engaging in honest and authentic conversations about the ups and the downs of sustainable agriculture. They’ll learn about prairie strips, talk to the founders of a regenerative dairy farm, visit the “Godfather of Soil Health,” and continue the conversation about agriculture’s role in curbing climate change. The new season launches ​April 13​​.

According to the EPA, the agriculture sector of the economy causes 10 percent of greenhouse gas emissions, far behind energy, transportation, and industry. But there’s a lot of interest in how to reduce ag’s carbon footprint. Regenerative practices on the farm, especially using cover crops for soil health, can reduce those emissions by sequestering carbon below ground. Yet carbon markets for ag are still kind of the Wild West. On this episode of Field Work, hosts Zach Johnson and Mitchell Hora explore the roles of finance and government in building the markets. Guests are Cristian Barcan, vice president for sustainability for Rabo Agrifinance, one of the biggest agricultural lenders in the U.S., and Iowa Secretary of Agriculture Mike Naig.

Read more: The roles of finance and government in building the markets