Our Story
Since 2022, we have been a high school volunteer club based in California dedicated to environmental activism and global awareness. Our focus is on raising awareness and taking action to combat the critical issue of global warming caused by human activities. Through volunteer efforts, campaigns, and educational initiatives, we strive to inspire others to join us in the fight to protect our planet. We aim to spread the word about the urgent environmental challenges we face and to show that, together, we can heal the Earth. Every individual has the power to make a difference, and by uniting our efforts, we can create a sustainable and thriving future for all.
Alexander Ahn – Co-Founder
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Alexander Ahn is a co-founder of the Green Earth Society and a junior at Harvard-Westlake School with a passion for biodiversity, conservation, and sustainability. He leads youth-driven environmental initiatives focused on recycling, reuse, climate awareness, and partnerships with local farms. As the club's website developer, he designs and maintains its online presence while leading outreach and creating educational resources. Alex is a 2026 USABO Semifinalist, recognized among approximately the top 500 high school students in the nation, and serves as Managing Editor and Executive Editor of The Holloway, Harvard-Westlake’s environmental journal. His interests span biology, ecology, public health, and science communication, and he hopes to inspire young people to create practical, lasting environmental solutions.
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Rachel Park Co-Founder
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Rachel Park is an environmental advocate and artist with a deep passion for sustainability and climate justice. Growing up in Los Angeles, she was first introduced to environmental stewardship by her grandmother, who taught her to compost, reuse materials, and care for the garden with intention. These early lessons sparked a lifelong commitment to protecting the planet and finding creative ways to live in harmony with it. Rachel has led youth-driven initiatives focused on climate education, waste reduction, and community resilience. She believes that real change is built both through collective action and the small, everyday choices we make—from what we buy to how we care for others and the earth. With a background in art and psychology, she brings both creativity and empathy to her environmental work, and she’s especially interested in the intersection of climate and public health. She’s excited to continue growing alongside a community of changemakers committed to sustainability and justice.
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Joyce Chang
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Joyce Chang is a current second year at UCLA studying psychobiology with a passion for service and public health. After realizing the importance of accessibility of clean resources on human health, she has joined clubs that spread awareness of global health issues by making infographics and podcasts. She strongly advocates for environmental preservation, considering the amount of patients treated for chronic diseases caused by the lack of clean environment, such as lung and heart conditions. Joyce hopes to raise the younger generation of B.L.O.O.M. to have a true passion for our earth and educate others on the effects of their actions.
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David Park – Advisor
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David Park's background is rooted in applied mathematics, economics, and the sciences—fields he's used to explore solutions for real-world issues. David has authored four research papers in econometrics and statistics, with a focus on using data to improve lives through smarter investing, better policy, and sustainable innovation. Through B.L.O.O.M., he's shifted my lens toward the environment. The Earth is our only home, and its health is deteriorating—air pollution, habitat loss, species extinction, and climate change worsen every day. But small acts matter. Even recycling your plastic container after lunch can create ripple effects. With his research, writing, and community action, David aims to empower others with the tools—economic insights, data, and optimism—to protect what we all love. Let’s clean our oceans, streets, and shared spaces. Let’s fight for the future. And most importantly, let’s do it together.
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Tiffany Kim – Advisor
Tiffany Kim is a distinguished educator and environmental advocate whose life’s mission is to empower the next generation to lead meaningful, global change. Her academic foundation was built at the prestigious Harvard-Westlake School and deepened at Columbia University, where her passion for sustainability and education intersected with real-world purpose.
She was accepted to a few of the most prestigious graduate programs in the nation—including Columbia University—each recognized for academic excellence and global impact. Rather than continuing straight into graduate studies, Tiffany made the intentional decision to take a purposeful gap year, dedicating her time to student mentorship, educational consulting, and climate advocacy.
As the advisor to the B.L.O.O.M. Environmental Club, Tiffany plays a hands-on role in guiding student leaders to launch impactful initiatives—from local sustainability campaigns to climate action and public awareness efforts. She believes that meaningful change begins with empowered youth and works tirelessly to equip students with the confidence, tools, and vision to lead with purpose. No matter the path ahead, Tiffany is unwavering in her mission to serve humanity through education, inspired leadership, and bold action that leave a lasting impact.
She was accepted to a few of the most prestigious graduate programs in the nation—including Columbia University—each recognized for academic excellence and global impact. Rather than continuing straight into graduate studies, Tiffany made the intentional decision to take a purposeful gap year, dedicating her time to student mentorship, educational consulting, and climate advocacy.
As the advisor to the B.L.O.O.M. Environmental Club, Tiffany plays a hands-on role in guiding student leaders to launch impactful initiatives—from local sustainability campaigns to climate action and public awareness efforts. She believes that meaningful change begins with empowered youth and works tirelessly to equip students with the confidence, tools, and vision to lead with purpose. No matter the path ahead, Tiffany is unwavering in her mission to serve humanity through education, inspired leadership, and bold action that leave a lasting impact.