Racing for Climate Research

April 2, 2025

Biosphere 2 and Run Tucson join forces to host the 4th Annual TMC Earth Day 5K Run/Walk

Tucson, Arizona /ENDURANCE SPORTSWIRE/ – For the fourth year in a row, Run Tucson and the world-renowned Biosphere 2 are partnering to produce the TMC Earth Day 5K Run/Walk. Taking place on Saturday, April 19^th on the grounds of the Biosphere 2 in Oracle, Arizona, the TMC Earth Day 5k celebrates international Earth Day and raises funds for the Biosphere 2 Ocean Reef research project.

Participants can register online or in person on race morning. Registration includes a souvenir short-sleeve shirt, entry into the timed race, live music, and free entry to tour the Biosphere 2.

“Really, every day is Earth Day at Biosphere 2,” said John Adams, Deputy Director and Chief Operations Officer of Biosphere 2. “We showcase the cutting-edge research happening in the world’s largest controlled environment dedicated to understanding the impacts of our changing climate on ecosystems,”

“We are also very excited about our partnership with the Run Tucson,” Adams continues, “which will solidify the connection of the health of Biosphere 1 (Earth) and our health. The TMC Earth Day 5k is a great way to get outdoors, whether you’re a walker or runner.”

Run Tucson race director Randy Accetta adds, “The running community has been impacted by a changing climate in recent years, from forest fire smoke to extreme temperatures, so we’re thrilled to use the TMC Earth Day to support education into scientific innovations. Plus, as a runner, this is one of the most unique race locations you’ll ever find. Between the unique Biosphere 2 architecture and the stunning views of the nearby Catalina Mountains, there’s nothing like it in the world.”

Along with the race, there will be interactive Earth Day learning for all ages, food trucks, age group and overall awards from The Running Shop, and live music.

Registration is at https://runsignup.com/Race/AZ/Oracle/Biosphere2EarthRun5k

About Biosphere 2: Acquired by the University of Arizona in 2011, Biosphere 2 advances the understanding of natural and human-made ecosystems through industry-leading climate research. As the world’s largest sealed, self-sufficient research facility, Biosphere 2 advances Earth science research, conducts interdisciplinary science education, and fosters leadership initiatives focused on developing scalable solutions for the planet and beyond.

Contact:

John Adams, Deputy Director & Chief Operations Officer, Biosphere 2

Phone – 520-621-3955

Email – jadamsb2@arizona.edu

Web – www.biosphere2.com

About Run Tucson: Run Tucson is a full-service running company, producing some of the most dynamic events in Arizona, including the May 31^st TMC Meet Me Downtown 5k Night Run and the October 25th Grand Canyon Trail Half Marathon near the South Rim. Run Tucson is led by Randy and Tia Accetta, RRCA-certified race directors and coaches.

Contact:

Randy Accetta, Run Tucson

Phone – 520-991-0733

Email – randy@runtucson.net

Web – www.runtucson.net