Echoes for the Earth: Voices of Changemakers

Dian Sonnerstedt is an Indonesian ecopreneur and founder of Bodega Ubud, Tenanglife.com, and Sound Sanctuary Bali, as well as a certified Global Ecobricks Alliance (GEA) Trainer. Formerly Marketing Director at major corporations such as Yahoo!, Aegon, and Guvera, Dian now channels her strategic expertise into community-building and purpose-driven initiatives. As a sound healing therapist and educator, she champions a mindset of mindful, practical action over perfection, believing that lasting change stems from daily habits and collaboration. Her work inspires others to integrate eco-consciousness and inclusivity into everyday life, both online and offline, reaching a growing audience of over 74K followers under @mamaserbabisa on Instagram.

Dian Sonnerstedt adalah seorang ekopreneur Indonesia, pendiri Bodega Ubud, Tenanglife.com, dan Sound Sanctuary Bali, serta Trainer bersertifikat Global Ecobricks Alliance (GEA). Sebelumnya, ia pernah menjabat sebagai Marketing Director di beberapa perusahaan besar seperti Yahoo!, Aegon, dan Guvera. Saat ini, Dian memanfaatkan keahliannya di bidang strategi untuk mendukung pembangunan komunitas dan berbagai inisiatif yang berorientasi pada tujuan. Sebagai terapis dan pengajar sound healing, ia menekankan pentingnya tindakan yang sadar dan praktis dibanding mengejar kesempurnaan, dengan keyakinan bahwa perubahan berkelanjutan berawal dari kebiasaan sehari-hari dan kerja sama. Karyanya telah menginspirasi banyak orang untuk mengintegrasikan kesadaran lingkungan dan nilai inklusivitas dalam kehidupan sehari-hari, baik secara daring maupun luring. Saat ini, ia menjangkau lebih dari 74 ribu pengikut melalui akun Instagram @mamaserbabisa.

Melati Wijsen is an Indonesian-Dutch environmental activist, author, and co-founder of Bye Bye Plastic Bags, a movement to combat plastic pollution on her home island of Bali. Melati has opened the stage for President Barack Obama at the Ziggo Dome in Amsterdam, moderated National Geographic's Sustainability Week in Bangkok, and recently published her first book, Change Starts Now, with HarperCollins. Since founding Bye Bye Plastic Bags at age 12, Melati has developed a passion for environmental education and policy change. Her accomplishments include speaking at the UN, co-chairing the World Economic Forum’s GPAP Committee, serving on the inaugural Expert Advisory Panel for the Earthshot Prize, and having her film Bigger Than Us premiere at the Cannes Film Festival. Building on ten years of advocacy, Melati continues to share her experiences in classrooms, boardrooms, and on world stages through her company, YOUTHTOPIA.

Melati adalah agen perubahan dan pembicara yang dikenal secara internasional. Ia pernah membuka panggung untuk Presiden Barack Obama di Ziggo Dome (Amsterdam), menjadi moderator dalam Sustainability Week bersama National Geographic di Bangkok, dan baru saja menerbitkan buku pertamanya berjudul Change Starts Now bersama Harper Collins. Sejak mendirikan Bye Bye Plastic Bags di usia 12 tahun, Melati menumbuhkan ketertarikan yang kuat terhadap pendidikan lingkungan dan perubahan kebijakan. Ia juga pernah berbicara di forum Perserikatan Bangsa Bangsa (PBB), menjadi co-chair Komite GPAP di World Economic Forum, duduk di Panel Penasihat Ahli perdana untuk The Earthshot Prize, dan film dokumenternya, Bigger Than Us, tayang perdana di Festival Film Cannes. Dengan pengalaman lebih dari sepuluh tahun di dunia advokasi, Melati terus berbagi pengetahuan dan pengalamannya dari ruang kelas hingga panggung dunia melalui perusahaannya, YOUTHTOPIA.

I Wayan Tommy Sastra Wijaya is an Indonesian sociopreneur dedicated to creating positive social and environmental impact through sustainable business, creative expression, and community action. He founded Tommy Busana, a garment factory built on values of quality, empowerment, and responsibility, and also engages youth as a DJ, using music as a tool for connection and change. In response to Indonesia’s growing waste crisis, he launched the Daur Ulang Movement, which promotes recycling, sustainable living, and eco-education through grassroots initiatives. Believing that change starts with small, consistent steps, Tommy continues to inspire as an entrepreneur, artist, and environmental advocate.