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: to educate listeners about the importance of environmental preservation, conservation, and stewardship.

Contact Chris and Nell via email at

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, Executive Director of Park City Film

"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

This Green Earth is Sponsored by:


Ways to Connect

BirdCast Sends Out Alert to Help Protect Migrating Birds

Sep 21, 2021

On This Green Earth, Nell and Chris turn their attention skyward to talk about migrating birds. 

Julia Wang, project manager and contributor with BirdCast, comes on the show to discuss a bird alert that has gone out to help keep our fine, feathered friends safe while they migrate. 

Proposals Welcomed for Park City Climate Fund

Sep 21, 2021

On This Green Earth, Diego Zegarra, Vice President of Equity & Impact for Park City Community Foundation, along with Sarah Hall, Park City Community Foundation Board Member and Chair of the Park City Climate Fund join the show.

Zegarra and Hall come on to talk about the proposals for the Park City Climate Fund, which aims to engage climate work champions and innovators in greater Park City to implement local climate solutions. 

Hunting Safety and Etiquette

Sep 21, 2021

Hunting season is upon us, and on This Green Earth, Chris and Nell speak with Captain Wyatt Bubak about hunting saftey, protocols and etiquette, as well as what hikers should take into consideration during this time. 

Why Our Warming World May Be Creating Stronger Storms

Sep 14, 2021

Hurricane Ida slammed into multiple states last week. It was a Category 4 storm with winds above 150 mph and rainfall rates that broke records. A warmer world may have made hurricane Ida a stronger storm.

On This Green Earth, Dr. Jason Evans, Executive Director of the Institute for Water and Environmental Resilience and Associate Professor of Environmental Science and Studies at Stetson University, comes on the show to speak with Nell and Chris about the powerful storm. He will discuss its origin, intensity, and path of destruction. 


On This Green Earth, Nell and Chris talk about why our overnight lows are not so low anymore. 

Across the continental US this summer it was unusually hot, particularly at night. Overnight lows were the warmest on record for every state on the west coast and parts of the northeast. Utah experienced its warmest summer nights on record, with nighttime lows in the Salt Lake City area now averaging almost nine degrees Fahrenheit warmer than those recorded in the 1960's.

On This Green Earth, we speak with Vicky Ward, Overflights Program Manager for the National Park Service.

Along with the increased number of feet hiking through park lands, the number of aircraft flying the local skies has also increased. And, with that comes sources of air and noise pollution that impact the parks.

Ward will discuss what Air Tours are, how they impact the national parks, and the role she is playing in developing and overseeing the Air Tour Management Plan. 

On This Green Earth, we welcome Dr. Brian Moench, an anesthesiologist and founder of Utah Physicians for a Healthy Environment.

Dr. Moench, talks about the proposed Inland Port near the Salt Lake City airport. Specifically, he addresses the impacts such a facility would have on air quality and the health of those that live in the salt lake basin. 

On This Green Earth, Nell and Chris speak with Deeda Seed, Public Lands Senior Campaigner for the Center for Biological Diversity. 

The Utah Clean Infrastructure Coalition recently release a report documenting that since 2009, $109 million in funding intended for rural Utah communities has been spent on fossil fuel projects. 

The Coalition is a collection of environmental advocacy and research groups throughout the state.

Long-term Impacts of Wildfires on Our Ecosystem

Aug 17, 2021

On This Green Earth, Dr. Tim Brown joins the show.

Dr. Brown is a research professor at the Desert Research Center in Nevada and the Director of the Western Regional Climate Center.

He will be speaking about the impacts the recent wildfires, including the Parleys Canyon Fire, can have on our ecosystem and what we can do to help prevent these devastating fires.

Groundbreaking Study Discloses Inequity of Tree Cover in Our Nation

Aug 17, 2021

On This Green Earth, your hosts Nell Larson and Chris Cherniak are talking tree equity.

A recent, groundbreaking study conducted by the nonprofit organization, American Forests, reveals the inequity of tree cover in different urban areas.

The study reveals that trees are sparse in socioeconomically disadvantaged neighborhoods.

Jad Daley, President & CEO of American Forests will come on the show to break down the Tree Equity scores and what is being done as a result.

Effects of Air Quality on the Environment and Our Health

Aug 10, 2021

On This Green Earth, Dr. Brian Moench with Utah Physicians for a Healthy Environment talks about the various health impacts the smoky air has delivered to us recently.

Dr. Moench shares the concerning trends in air quality he's been observing in the Salt Lake Valley over the past three years. He present his data on this and what it means for our environment and our personal health. 

The Untapped Science of Less

Aug 10, 2021

On This Green Earth, Nell and Chris have an interesting conversation that drives the question, what if there was a simple shift in thinking that could help us approach climate change in a way that allowed us to embrace both progress and preservation?

They discuss this shift in thinking with University of Virginia professor Leidy Klotz. In his new book, SUBTRACT: The Untapped Science of Less, Klotz defines how we systematically overlook the concept of simplification when trying to improve elements of life, work, and the world.

We default to fixing through adding.

Proposed Multi-Billion Dollar Lake Powell Pipeline Project

Aug 3, 2021

On This Green Earth, your hosts Nell Larson and Chris Cherniak talk with Eric Balken.

Balken is the Executive Director of Glen Canyon Institute. He will be covering the proposed Lake Powell Pipeline. A multibillion dollar, 140- mile pipeline project that would pump up to 86,000 acre-feet of water annually out of the Colorado River and into southwest Utah.

Why is the pipeline necessary? Who would pay for it? And, what impacts would such a pipeline have on those needing Colorado River water downstream. 

How Normal Are the Recently Calculated 'Climate Normals'?

Aug 3, 2021

On This Green Earth, Nell and Chris discuss Climate Normals.

In Salt Lake City, they have recorded not only the hottest June on record, but the now also the hottest July.

This has not been observed before in the the nearly 150 years of daily weather recording. Is this part of the new mornmal for temperatures here in Utah and the mountain west? 

Climate Scientist Mike Palecki joins the show to talk about what Climate Normals are and how they are calculated.

On This Green Earth, Mike Scott, a Senior Campaign Representative with Sierra Club’s Montana Chapter, comes on to discuss the importance of the Biden Administration’s plan to fully restore environmental protections to the Tongass National Forest in Alaska.

The Tongass is home to some of the last remaining stands of temperate old-growth rainforest in the world. It’s also America’s largest forest storehouse of carbon.