This Green Earth

Tuesday, 9-10 AM

Hosts Chris Cherniak and Nell Larson
Credit Mark Maziarz

This Green Earth is a weekly, hour-long program that focuses on the environment and environmentalism. Co-hosts Christopher Cherniak and Nell Larson explore the science, politics, economics and ethics behind the environment, natural resources and sustainability.

The program includes interviews with local and national experts in the fields of water resources, air quality, environmental policy, fossil and renewable fuels, climate, conservation, ecosystems, agriculture, aquaculture and sustainability.

TGE has interviewed a number of individuals from different environmental fields including: writers Andrew Revkin, Terry Tempest Williams, Craig Childs, Richard Louv and Paul Erlich; politicians like the Mayors of Park City and Salt Lake City; policy analysts from the Natural Resources Defense Council and the Environmental Defense Fund; scientists and researchers from the Monterey Bay Aquarium to the National Weather Service; and, local sustainable business owners from Copper Moose Farm, Main Street Olive Oil Company, Whole Foods Market and Fairweather Natural Foods.

Christopher Cherniak is an environmental engineer with nearly 30 years experience as an environmental consultant. Nell Larson is an environmental scientist , educator and a graduate of the Yale School of Forestry. Together, they direct This Green Earth's mission, which is to educate listeners about the importance of environmental preservation, conservation and stewardship.

Contact Chris and Nell via email at

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What People are Saying About This Green Earth

"This Green Earth offers an in-depth analysis of current environmental issues that affect our local and global community.  The conversations between the hosts and their guests is enlightening and challenging, but at the same time has a light touch that makes the issues accessible to a wide listening audience.  An invaluable resource for our community." Katy Wang

"This Green Earth does an excellent job recruiting knowledgeable and interesting guests.  As someone who's been involved in the "green" sector for many years, I'm consistently impressed with the ability of Katie and Nell to introduce me to something new!"  Tyler Paulsen, former Sustainability Office, Park City Municipal

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Ways to Connect

Last week, the EPA announced that they where eliminating the Office of Science Advisor, a position that has been around for 37 years advising the EPA's chief administrator on the science behind environmental policies and regulations.   Why is an office that has been around since 1981 suddenly going away?  Chris Cherniak and Nell Larson speak with a policy expert from the Union of Concerned Scientists to answer that question and others, on This Green Earth.



In the second half of the program, Chris and Nell speak with Paul Greenberg, the author of the new book, “The Omega Principal, Seafood and the Quest for a Long Life and a Healthier Planet.” Omega 3 fatty acids – or fish oil – have long been touted by doctors and dieticians as a key to a healthy heart and sharper brain.  But, what’s the impact of harvesting tons of anchovies and sardines to the marine food chain?

This summer was Utah's warmest on record.  September was well above average and also one of the driest.  And today most of the state is facing warnings for "flash floods".   What's going on?  Chris and Nell speak with Brian McInerney from the National Weather Service to better understand our shifting temperatures and weather patterns.  

Chris and Nell talk to Meredith Reba, the co-author of a fascinating new book titled: City Unseen, New Visions of an Urban Planet.  The book compiles satellite images of one hundred cities around the globe showing how geography shapes urban settings while also showing how cities impact the surrounding environment.

Washington County in the southwest corner of the state wants to divert tens of millions of gallons of water each day from the Colorado River to satisfy their growing demand for water.  But the proposed 140-mile-long Lake Powell Pipeline just suffered a setback from the Federal Energy Regulatory Commission. Chris and Nell visit with Zach Frankel, the Executive Director of the Utah Rivers Council.

This morning on This Green Earth, Chris and Nell speak with Earl Swift, author of the book: "Chesapeake Requiem - A Year with the Watermen of Vanishing Tangier Island".    The book chronicles the lives of crabbers and oystermen residing on a small island in the middle of the Chesapeake Bay.  It's a story of an island that is undergoing physical, biological and economic loss and what residents believe should be done to save it.     


In the second part of the show Chris and Nell talk about growing cougar populations in the U.S. with Jim Williams, author of the book:  Path of the Puma - The Remarkable Resilience of the Mountain Lion.  


Today on This Green Earth, Chris and Nell first speak with Jeremy Jackson, co-author of the new book "Breakpoint - Reckoning with America's Environmental Crisis".   The book shows how America's mounting environmental crises like droughts, fires, floods and rising seas are not only connected by human activity but together, are re-shaping our land, water, coastlines and economies. 

Today on This Green Earth, Chris and Nell speak with Lisa Lynch,  environmental attorney with the Natural Resources Defense Council, about the EPA's canceling of their own Clean Power Plan and replacing it with something called the Affordable Clean Energy Rule.  She'll talk about why EPA is doing this and the major differences between the two plans.   Then, find out many more 90 degree days Salt Lake City is experiencing today versus the 1980's.  Hint, it's more than just a few. 


Dave Pacheco with the Southern Utah Wilderness Alliance talks about a public meeting being held August 29th at the Salt Lake City Public Library to discuss the Emery County Public Lands Management Act.