Nicole Walker is the author of several books including How to Plant a Billion Trees: A Memoir of Childhood Trauma and the Healing Power of Nature, Sustainability: A Love Story, and The After – Normal: Brief, Alphabetical Essays on a Changing Planet, along with many other noted titles. She has written several pieces for The New York Times and is a recognized author in several editions of Best American Essays. She edits the Crux, the literary nonfiction series at University of Georgia Press and teaches creative writing at Northern Arizona University where she serves as Writer-in-Residence for the Center for Ecosystem Science and Society.

Rob Shaut is the Chief Operating Officer (COO) at Casey Trees a Washington, DC-based non-profit. He was formerly the Tree Operations Director, managing a 30-person team responsible for planting 7,000 plus trees per year, while maintaining thousands more annually throughout Washington, D.C, Maryland, and Virginia. Rob also oversees the Casey Tree Farm, Education, Policy and Land Conservation, Development, and Communications departments. He is a Certified Arborist® through the International Society of Arboriculture (ISA) and he is Tree Risk Assessment Qualified.  

Rob holds a certification from the Professional Horticulture Program at Longwood Gardens in Kennett Square Pennsylvania, a Bachelor of Science in Business Management from Clemson University and Rob has studied at the Royal Botanic Garden in Edinburgh, in the UK.

(ISA Cert. MA-6185A) 

Our guest co-host, Lou Meyer, began his Arboricultural journey in Cincinnati back in 2001 when he needed a summer job. Over the years he has worked in residential and commercial tree care, residential and commercial landscaping, and utility Arboriculture in Ohio and Maryland, where he currently resides. After working for a few smaller operations, Lou joined Davey Tree in 2013. He earned his ISA Arborist certification in 2014, and since then he has earned his Municipal and Utility Specialist Certs along with becoming TRAQ certified. Lou has served on the boards of the Mid Atlantic Chapter of the ISA and the Maryland Arborist Association. He lives in Ellicott City, just west of Baltimore, with his wife Molly and two children, Louie and Maggie. His favorite tree (this week) is a white oak.

Hal Rosner has been the co-host of The Plant a Trillion Trees since its founding in 2020. Hal brought his decades of knowledge in the tree industry to the podcast. He partnered in finding guests, read their books and researched their backgrounds, created questions, and brought his keen wit and sense of humor to the interviews.

Hal will be missed but we know that he will be successful in his future endeavors here and around the world as he continues to share his amazing energy through his Mindfulness Practice and tree knowledge to his local community through Tree Tenders®.

We know that our paths will cross again as he makes the new changes in his life. 

Good Luck and All the Best, Eva Monheim and Andrew Monheim at AndromiDen Recordings.