meet the team

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Ariel Stone
Volunteer Manager
(602) 689-3749 | ariel@treesmatter.org

Ariel is an Arizona native, having grown up in downtown Phoenix. She graduated from ASU with a BS in Nonprofit Leadership and Management, and has volunteered for nonprofits since a young age. She volunteered with Trees Matter while a freshman at ASU and is glad to be back as part of the team! Ariel values the importance of trees and other plants native to the desert southwest, and is particularly interested in ensuring that they thrive in a rapidly growing urban setting. While she’s excited how fast Phoenix has been growing both culturally and economically in recent years, she believes Trees Matter can have impact on making sure this growth happens in the most sustainable way. She loves traveling, drawing, yoga, and live music. Ariel’s favorite tree is the Parkinsonia, or Palo Verde. 



Brittany Rinear
Remote Communications Assistant

Brittany has an extensive background in customer service, and is passionate about supporting our organization. After graduating from McClintock High School in Tempe, she lived in Portland, OR, and Santa Rosa, CA, where she developed a deep appreciation for ocean winds and cypress trees. Brittany is now a visual artist, creating and selling abstract paintings with various mediums, and is a ceramics student at Phoenix Center for the Arts. Her passion for gardening is mostly limited to indoor plants, especially in the summer! After providing occasional support for past projects, she is excited to move into a more substantial role at TM!


Paulina Vu
Program Manager
(602) 618-5529 | paulina@treesmatter.org

Paulina was born in Arizona, and recently graduated with a concurrent degree in Sustainability and Global Studies. Her interest in sustainability in a local and global stage has led her to various projects, volunteering, and internships with organizations such as the Gaia Association, The International Rescue Committee, and the Arizona Department of Environmental Quality. Paulina is passionate about community engagement, and is excited to work towards a healthier, happier Phoenix. While at ASU, she was an intern for Trees Matter and is thrilled to join the team once again. She has always been in awe of nature and loves to hike, take photos, travel, and board games in her free time. Her favorite tree is the Hong Kong Orchid.



Anwuli Onwuta
Spring 2019 Events Intern

Anwuli Onwuta is originally from Chicago, and is currently attending Arizona State University to pursue a Bachelor of Science in Sustainability, and a minor in Public Relations. She has a passion for environmental conservation and believes in creating a sustainable future for everyone. She is excited to provide her community with the tools needed to incorporate sustainability into their lives through her work with TM!



Aimee Esposito
Executive Director
(602) 689-2896 | aimee@treesmatter.org

Aimee is a native Phoenician, growing up next to Piestewa Park. She has always had an appreciation for both the function and beauty of the desert environment. Aimee attended ASU where she learned the importance of bridging fields, receiving a BS in Geography and a BA in English Literature. Later Aimee ventured to Monterey, California where she spent two years earning a Master's degree in International Environmental Policy. Aimee learned a range of subjects from ecosystem valuations to grant writing and spent a summer in Peru to film for the Andean Alliance of Sustainable Development who helps provide easy to make green houses for indigenous communities and schools. She values the importance of direct impact, especially at a city level. Aimee’s favorite tree is the Prosopis juliflora, or the Native Mesquite.



Mina Garcia
Spring 2019 Events Intern

Mina is a full-time student at Arizona State University, majoring in Tourism Development & Management. She believes events and traveling should be a memorable experience that give us the little break we need to rest and re-energize to keep going forward in our daily life. She is excited to intern for Trees Matter, as this is her first step in her dream career field. She likes how this internship combines her interests in sustainability and events, and she feels it will provide her the opportunity to gain experience and the chance to grow.



The Office

734 W. Polk St. Phoenix, AZ 85007


Mailing Address

PO Box 2648 Phoenix, AZ 85002


Our office is in the building of The McKinley Club, a co-sharing workspace. Feel free to ask around--we all know each other. We look forward to seeing you soon!


If you want to mail something to us please use our mailing address listed on the right.



Copyright © 2019 Trees Matter. All Rights Reserved. Support | Contact | Employment (602) 689-2896 | 734 W. Polk St, Phoenix, AZ 85007