Our staff is a team of energy professionals united by our passions for efficient living, cutting carbon, helping solve the climate crisis, and helping others. Oh, and we love getting outside and playing in the mountain environment we’re working with you to protect.


Mona Newton, Executive Director at CORE

Mona joined CORE as Executive Director in 2012.  As the Executive Director, Mona oversees all operations. She loves working in the Roaring Fork Valley and is passionate about continuing CORE’s work to support communities in achieving their energy efficiency, renewable energy and carbon reduction goals.

With more than 25 years professional experience in the environmental arena, Mona has worked across many sectors. She worked for five years at the Colorado Governor’s Energy Office (GEO) working with communities to develop and implement energy efficiency and renewable energy programs and projects in their communities. Prior to working with the GEO, she worked in the renewable energy sector and as Director of the Center for ReSource Conservation in Boulder.

She has a degree in Political Science from Northwestern Oklahoma State University and Masters degree from the Korbel School of International Studies, University of Denver.  In her free time she spends time traveling, exploring wine tasting and grape growing and outside enjoying nature.


970.925.9775, ext. 500

CORE Program Director Marty Treadway

Marty is the Program Director for CORE. He manages the various CORE grant programs and supervises the remaining energy program offerings. He has been a general contractor in the Roaring Fork Valley since 2001, as the co-owner of a design-build firm specializing in sustainably built custom homes. He received his LEED Green Associate and BPI-Building Analyst certifications in 2011.

Marty’s home is in Carbondale, where he has lived on and off since 1999. He has worked for several architects, volunteered for many years on the the Carbondale Mountain Fair board, Red Hill Council and Roaring Fork Outdoor Volunteers. Some of Marty’s other interests include mountain biking, climbing, skiing, and raising his two wonderful boys Tyler and Potter, with a little help from his wonderful wife, Trina Ortega. Marty holds a Master of Architecture degree from CU Denver, and a Technical Journalism degree from CSU.


970.925.9775, ext. 504

Lara Whitely, Director of Brand Strategy and Communications at CORE

One of Lara’s first “marketing” endeavors was designing a prize-winning poster for a utility-sponsored contest in 7th grade. Her snappy headline? “Solar Energy: Catch It and Conserve It.” Today, Lara marvels that she has come full circle by leading community engagement and marketing for CORE.

Lara’s passion is building momentum and launching movements by telling a great story. Prior to joining CORE, she was the Communications Director for Aspen Community School’s successful $9.1M campaign to transform its aging campus into a state-of-the-art facility targeting LEED Gold and the 2030 Carbon Neutral Challenge. For nearly a decade, she served as the Director of Marketing + PR for Aspen Words, where she built the organization’s marketing program from the ground up. Lara graduated with a degree in Mass Communications from UC Berkeley and has been a Roaring Fork Valley resident since 1998.

As a mother, community member, visual artist and self-proclaimed word nerd, Lara is excited to join CORE, training her communications sights on climate action, which she holds as the most pressing issue of our time. When not brainstorming ways to better connect with the community, you’ll find Lara riding her bike in the mountains with her husband and two boys, making art, or hunting down the sweetest peach at the farmer’s market.


970.925.9775, ext. 505


On her way to California in the late 70’s, Trish Chew landed in Aspen for “one season only.”  The 12” rule was in effect, with the weather pattern of bluebird days, champagne powder, and snow at night.  Realizing the ski bum lifestyle would not be sustainable for the long term, she put her degree in business administration to work for Reese Henry & Co.  Trish started her own accounting business and continued to work closely with the CPA firm. Initially with for profit firms, she shifted her emphasis to the non-profit sector.  Trish enjoyed helping the non-profits achieve their goals and volunteering for their events. With CORE since 2014, she was thrilled to be offered a full-time accountant position.  Working with the best committed staff ever, Trish aims to assist CORE continue to effect positive changes.


970.925.9775, ext. 508


Phi is CORE’s Community Sustainability Manager, working with Roaring Fork Valley communities to meet and expand their climate goals. She became interested in sustainability while traveling in South America, where she became aware of the impacts of climate change and development on tourist destinations. This experience inspired her to obtain a dual master’s degree in business and environmental studies and go on to working in green building and sustainability. Her related experience includes work in LEED and sustainability consulting, sustainable real estate development, energy program development, program evaluation and solar.

Phi has lived in Carbondale since 2014 and loves calling the Roaring Fork home. She can be found skiing, biking, and volunteering or spending time with the many wonderful people in our community.  Phi has a dual master’s degree in business and environmental studies from CU Boulder where she focused on real estate development and sustainable tourism in mountain communities.


970.925.9775, ext. 502


Andrea grew up outside of Philadelphia. Having environmentalists as parents, she grew up in a world wasting as little as possible. Hot water was turned off if the showers went too long and she collected grass clippings from the neighbors to add to the composting process. Going to college in New England, and living in the mountains and enjoying glacier lakes, started her appreciation of an unpolluted environment; additionally, traveling to counties around the word with serious pollution issues have increased her desire to help do something to preserve our resources. Andrea now helps protect the ever-changing environment around us so we can give those in our future a sustainable world.


970-925-9775 Ext: 514


Hannah grew up just a short bike ride from the beautiful beaches of Fort Lauderdale, Florida. She pursued her undergraduate studies at the University of Florida majoring in Sustainability and the Built Environment, graduating in May of 2014. Passionate about promoting a healthy, flourishing, sustainable community, Hannah continued her education at the University of Florida earning her Master’s degree in Urban and Regional Planning with a focus on Environmental and Food Systems Planning in the summer of 2015. Before moving to the Roaring Fork Valley, Hannah biked across the United States with an organization called Bike & Build, which engages young adults in cycling trips to benefit affordable housing. When not working at CORE, Hannah can be found exploring in the mountains, practicing yoga, or testing out recipes in the kitchen.


970.925.9775, ext. 507

Louisa grew up in Newton, Massachusetts, where she gained a love of the outdoors through spending summers on the beautiful beaches of Cape Cod, hiking and skiing in the nearby White Mountains, and running on her high school’s cross country team. She became interested in environmental protection and renewable energy when conducting a research project on anaerobic digesters for her high school conservation biology class. This interest led her to obtain a bachelor’s degree in Environmental Studies and Earth & Ocean Sciences from Tufts University, where she graduated from in May 2019. Throughout her college career Louisa worked various internships at organic farms, ecology labs, food justice nonprofits, and most recently at the Aspen Center for Environmental Studies, which brought her to the Roaring Fork Valley. Louisa is so excited to be on the CORE team in order to pursue her passion for renewable energy, carbon free living, and climate action. In her free time, Louisa enjoys all outdoor activities, baking pies, and DIY interior decoration projects.

Mac grew up in Salt Lake City, Utah, where energy, water and the environment were frequently the topic of dinner table conversations. His understanding of energy and the environment were put to the test at an early age in the unforgiving arena of elementary school debate club. From the first time writing a speech on renewable energy, Mac has recognized the importance of environmental issues and formed a belief that education is the first step toward having a meaningful impact.

Volunteering on local political campaigns led to studying Strategic Communications and Political Science, earning B.S. degrees in both from the University of Utah. After graduation, he spent the next eight years working to promote energy literacy among kindergarten through 12th grade students. Mac is thrilled to bring his passion for energy efficiency and community engagement to his role with CORE.

Mac enjoys taking part in all of the incredible outdoor opportunities the Roaring Fork Valley has to offer. Backpacking, hiking, skiing, disc golf and playing soccer are just a few of the ways he might to spend a nice day. On the not so nice days, you will find him listening to new music and working on his latest knitting project.

970.925.9775, ext. 501

Beatriz is originally from Chihuahua, Mexico and grew up in a bi-cultural setting between Mexico and the United States. She graduated from Basalt High School and went on to study architecture in Chihuahua City. Having the opportunity to work in both the US and Mexico, she has engaged in a diverse range of architectural and community projects, always with a focus on environmental and social justice. She is very passionate about sustainable and conscientious design.

In her 15 years of architectural experience, Beatriz has worked on a variety of energy related projects, from Net-Zero affordable housing projects, to professional trainings with the Mexican Green Building Council.

Regularly being a part of two different worlds, she tries to bring people together and be a liaison for people in the communities of which she is a part; from Chihuahua City, to the tiny beach town of San Pancho, to the Roaring Fork Valley. She joined CORE in the spring of 2019 to develop a culturally appropriate workforce development program for Spanish speakers. She also volunteers in schools to encourage young Latinos to see themselves as leaders in STEM fields, become stewards of the land and understand the importance of their voice in environmental issues. Beatriz has moved in and out of the Roaring Fork Valley and has most recently been back since 2013 with her young son, Joaquin. Together they love to travel, snowboard, camp, hike and eat good tacos!


George Newman Board Chair
County Commissioner, Pitkin County

Katie Schwoerer Treasurer
Finance Operations Director, ACES

Mona Newton Secretary
Executive Director, CORE

Tom Goode Trustee
City Council Member, Town of Snowmass Village

Ward Hauenstein Board Member
City Council Member, City of Aspen

Cindy Houben Board Member
Director of Community Development, Pitkin County

David Munk Board Member
Vice Chair, Holy Cross Energy

Ashley Perl, Board Member
Climate Action Office Manager, City of Aspen

Katie Schwoerer Board Member
Town Councilor, Town of Basalt

Bill Stirling Board Member
Citizen Representative and Co-founder of CORE